User Guide FTB-5230S/-OCA Optical Spectrum and Channel Analyzers for FTB-500
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Contents Certification Information ........................................................................................................ v 1 Introducing the FTB-5230S/-OCA Optical Spectrum and Channel Analyzers ................................................................................. 1 Models ....................................................................................................................................2 Typical Applications ...................................................
9 Managing Files and Test Configurations .................................................155 Using the Discover Feature .................................................................................................155 Managing Measurement Files .............................................................................................158 Opening Other Test Mode Files in WDM Mode ...................................................................162 Managing Favorites ..................................
Certification Information Certification Information North America Regulatory Statement This unit was certified by an agency approved in both Canada and the United States of America. It has been evaluated according to applicable North American approved standards for product safety for use in Canada and the United States. Electronic test and measurement equipment is exempt from FCC part 15, subpart B compliance in the United States of America and from ICES-003 compliance in Canada. However, EXFO Inc.
1 Introducing the FTB-5230S/-OCA Optical Spectrum and Channel Analyzers The FTB-5230S Optical Spectrum Analyzer (OSA) is designed to measure optical power as a function of wavelength or frequency and Optical Signal to Noise Ratio (OSNR) based on the IEC method (interpolation method). It offers truly portable spectral characterization for DWDM network commissioning. The FTB-5230S-OCA Optical Channel Analyzer (OCA) is designed to measure optical power as a function of wavelength or frequency.
Introducing the FTB-5230S/-OCA Optical Spectrum and Channel Analyzers Models Models The OSA/OCA comes in different models: The FTB-5230S is an entry-level optical spectrum analyzer that is ideal for a variety of field applications, including DWDM and CWDM network commissioning and troubleshooting. The test modes available for your module are WDM and Drift. The FTB-5230S-OCA (Optical Channel Analyzer): This model is designed to measure optical power as a function of wavelength or frequency.
Introducing the FTB-5230S/-OCA Optical Spectrum and Channel Analyzers Optional Software Packages Optional Software Packages Optional software options are available for your OCA application. Note: Software options are not available on the OSA. Option Name WDM Description This option enables you to perform full WDM analyses as well as WDM drift measurements, just as you would with an FTB-5230S OSA.
Introducing the FTB-5230S/-OCA Optical Spectrum and Channel Analyzers Conventions Conventions Before using the product described in this guide, you should understand the following conventions: WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Do not proceed unless you understand and meet the required conditions. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
2 Safety Information WARNING Do not install or terminate fibers while a light source is active. Never look directly into a live fiber and ensure that your eyes are protected at all times. WARNING The use of controls, adjustments and procedures other than those specified herein may result in exposure to hazardous situations or impair the protection provided by this unit.
Safety Information Your instrument is a Class 1 laser product in compliance with standards IEC 60825-1: 2007 and 21 CFR 1040.10, except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007. Invisible laser radiation may be encountered at the output port. The following label indicates that a product contains a Class 1 source: The maximum input power for the FTB-5230S/-OCA Optical Spectrum and Channel Analyzers is 4 W.
3 Getting Started with Your OSA/OCA Inserting and Removing Test Modules CAUTION Never insert or remove a module while the FTB-500 is turned on. This will result in immediate and irreparable damage to both the module and unit. CAUTION To avoid damaging your unit, use it only with modules approved by EXFO. WARNING When the laser safety LED ( ) is flashing on the FTB-500, at least one of your modules is emitting an optical signal.
Getting Started with Your OSA/OCA Inserting and Removing Test Modules 3. Take the module and place it so that the connector pins are at the back, as explained and shown below. Identification sticker must be facing up and connector pins at the right of the retaining screw hole. Retaining screw hole at the back Connector pins at the back FTB-500 right panel Identification sticker facing up Protruding edges at bottom 4.
Getting Started with Your OSA/OCA Inserting and Removing Test Modules 7. While applying slight pressure to the module, turn the retaining screw clockwise until it is tightened. This will secure the module into its “seated” position. Turn retaining screw knob clockwise FTB-500 left panel When you turn on the unit, the startup sequence will automatically detect the module.
Getting Started with Your OSA/OCA Inserting and Removing Test Modules To remove a module from the FTB-500: 1. Exit ToolBox and turn off your unit. 2. Position the FTB-500 so that the left panel is facing you. 3. Turn the retaining screw counterclockwise until it stops. The module will be slowly released from the slot. Turn retaining screw knob(s) counterclockwise FTB-500 left panel 4. Place the FTB-500 so that the right panel is facing you.
Getting Started with Your OSA/OCA Inserting and Removing Test Modules 5. Hold the module by its sides or by the handle (NOT by the connector) and pull it out. 6. Cover empty slots with the supplied protective covers. CAUTION Failure to reinstall protective covers over empty slots will result in ventilation problems.
Getting Started with Your OSA/OCA Starting the OSA/OCA Application Starting the OSA/OCA Application Your FTB-5230S/-OCA Optical Spectrum and Channel Analyzers module can be configured and controlled from its dedicated ToolBox application. Note: For details about ToolBox, refer to the FTB-500 user guide. To start the application: 1. From the main window, select the module to use. It will turn blue to indicate that it is highlighted.
Getting Started with Your OSA/OCA Starting the OSA/OCA Application 2. Click the corresponding button in the Module Applications box.
Getting Started with Your OSA/OCA Exiting the Application Graph Function buttons Result panes FTB-5230S-OCA Note: The illustrations in this user guide may differ slightly from those on your unit depending on the resolution, application and platform type. Exiting the Application Closing any application that is not currently being used helps freeing system memory. To close the application from the main window: Click in the top right corner of the main window.
4 Preparing Your OSA/OCA for a Test IMPORTANT For optimal test results, you should allow a minimum warm up period of two hours for your OSA/OCA before starting your tests. Cleaning and Connecting Optical Fibers IMPORTANT To ensure maximum power and to avoid erroneous readings: Always inspect fiber ends and make sure that they are clean as explained below before inserting them into the port. EXFO is not responsible for damage or errors caused by bad fiber cleaning or handling.
Preparing Your OSA/OCA for a Test Cleaning and Connecting Optical Fibers 3. Carefully align the connector and port to prevent the fiber end from touching the outside of the port or rubbing against other surfaces. If your connector features a key, ensure that it is fully fitted into the port’s corresponding notch. 4. Push the connector in so that the fiber-optic cable is firmly in place, thus ensuring adequate contact.
Preparing Your OSA/OCA for a Test Installing the EXFO Universal Interface (EUI) Installing the EXFO Universal Interface (EUI) The EUI fixed baseplate is available for connectors with angled (APC) or non-angled (UPC) polishing. A green border around the baseplate indicates that it is for APC-type connectors. Green border indicates APC option Bare metal (or blue border) indicates UPC option To install an EUI connector adapter onto the EUI baseplate: 1.
Preparing Your OSA/OCA for a Test Selecting a Test Mode Selecting a Test Mode Your module gives you different ways to test all your DWDM systems: WDM: Allows you to analyze an optical link. By default, the WDM test mode is selected. Drift: Allows you to monitor an optical link for a fixed duration. Note: You cannot select a test mode in the OCA application. To select a test mode: 1. From the Main Menu, press Mode.
Preparing Your OSA/OCA for a Test Selecting a Test Mode 2. Select the desired test mode. Once you select the mode, you will notice a against the selected mode and all the tabs on the main window and the main menu will change accordingly. After selecting the test mode, you must configure it. You will find specific instructions for your test mode in the corresponding related chapters.
Preparing Your OSA/OCA for a Test Nulling Electrical Offsets Nulling Electrical Offsets The offset nulling process provides a zero-power reference measurement, thus eliminating the effects of electronic offsets and dark current due to detectors. Temperature and humidity variations affect the performance of electronic circuits and optical detectors. For this reason, EXFO recommends performing a nulling of the electrical offsets whenever environmental conditions change.
Preparing Your OSA/OCA for a Test Nulling Electrical Offsets 2. Disconnect any incoming signal to obtain an optimal accuracy. 3. Press Nulling. You are notified that the nulling is in progress in the status bar. Nulling should be completed in a few seconds. Note: Several features, such as the Start button and Discover, are not available during the nulling process.
Preparing Your OSA/OCA for a Test Performing User Calibration Performing User Calibration Calibrating your module can help you achieve better results. It is particularly important when the measurement accuracy is critical or when your OSA/OCA has experienced unusual shock or vibrations. To reach the highest possible accuracy, you can perform a wavelength or power calibration.
Preparing Your OSA/OCA for a Test Performing User Calibration Note: The user calibration feature is not available in the offline version of the application. To perform a user calibration: 1. Allow your unit to warm up. 2. From the Main Menu, press Analysis Setup.
Preparing Your OSA/OCA for a Test Performing User Calibration 3. Select the Calibration tab. Note: You cannot edit the power or wavelength values directly from the application. The modifications in the user calibration have to be made in a text file, and then it can be loaded in the application.
Preparing Your OSA/OCA for a Test Performing User Calibration 4. If user correction factors are in the system, press Clear User Correction Factors from Module, then confirm your choice. 5. Take measurements for your test mode.
Preparing Your OSA/OCA for a Test Performing User Calibration 6. Note the measurements to a .txt file using the following format: The first column is the reference wavelengths, in nm. The second column is the wavelength read by your module, in nm. The third column is the reference power, in dBm. The fourth column is the power read by your module, in dBm. Note: The columns are separated by a semi-colon (;). You can have up to 100 calibration points.
Preparing Your OSA/OCA for a Test Performing User Calibration 8. Back in the Calibration tab on your unit, load the file using Load Factors. 9. Select the modified user calibration file and press Open.
Preparing Your OSA/OCA for a Test Performing User Calibration The calibration values will replace the Correction factors list in the Analysis setup - Calibration window.
Preparing Your OSA/OCA for a Test Performing User Calibration 10. Press Write to Module to apply the modified calibration values to the module.
Preparing Your OSA/OCA for a Test Performing User Calibration 11. To verify that the calibration changes are properly applied to the module, press Load from Module. Note: The OK and Cancel buttons do not have any impact on the calibration page or the correction factors inside the module.
Preparing Your OSA/OCA for a Test Performing User Calibration To save a user calibration: 1. From the Main Menu, press Analysis Setup.
Preparing Your OSA/OCA for a Test Performing User Calibration 2. Select the Calibration tab.
Preparing Your OSA/OCA for a Test Performing User Calibration 3. Press Save Factors, to save the modified user calibration values.
Preparing Your OSA/OCA for a Test Using the Autonaming Feature Using the Autonaming Feature Defining a file autonaming format will allow you to quickly and automatically name traces in a sequential order. The customized name appears when the file is saved using the Save As option. You can select which fields you want to include in the file name and the order in which they should be displayed. The Link ID is used by the application to suggest a file name when you want to save the current acquisition.
Preparing Your OSA/OCA for a Test Using the Autonaming Feature To customize the file name: 1. From the Main Menu, press Preferences.
Preparing Your OSA/OCA for a Test Using the Autonaming Feature 2. Select the File Name tab. 3. Select which parameters you want to include in the file name from the list of available choices: 36 Wavelength/frequency range: current wavelength/frequency acquisition range. Acquisition type: current acquisition type. Scan count: current number of scans in the acquisition tab. Link ID: prefix value for the link ID configured in the Preferences-Information tab.
Preparing Your OSA/OCA for a Test Using the Autonaming Feature 4. Press the up or down arrows to change the order in which the field values will appear in the file name. Based on your selection, a preview of the file name is displayed under File name preview. The field values are separated with an underscore ( _ ). 5. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Restore Defaults to remove all the changes and apply the default settings.
Preparing Your OSA/OCA for a Test Using the Autonaming Feature To customize the file name in the OCA application: 1. From the main window, select the Trace Info. tab. 2. Press Trace identification. 3. In the General tab, enter the cable ID and fiber ID information you want to use.
Preparing Your OSA/OCA for a Test Using the Autonaming Feature 4. Select the Use as template option. 5. Press OK to confirm your choice. The new default file name will be “CableID_FiberID_Link###”. If you want to change the word “Link” or the increment number, you can do so in the Save As window, where the information will be kept for the next time you save a file.
5 Setting Up the Instrument in WDM Mode Note: This mode is not available in the OCA application. Before performing a spectral analysis in the WDM mode, you must set up the test application with the appropriate parameters, as explained in this chapter. Select the WDM test mode as explained in Selecting a Test Mode on page 18 before setting up the WDM test parameters. The preferences are the result displayed in the graph and tables, as well as the job information and related comments saved with each file.
Setting Up the Instrument in WDM Mode You can set up your unit in different manners, depending on your testing needs. 42 The preferred way is to use the complete analysis setup parameters and complete the information in all tables, as explained in Setting Up WDM Analysis Parameters on page 59. This setup will be used for the next acquisition.
Setting Up the Instrument in WDM Mode Defining Preferences Defining Preferences The preferences window allows you to set general information and comments on trace, set display parameters and customize the WDM results table. Note: Only the Display and WDM Results tabs are available in offline mode. Defining Trace Information The trace information relates to the description of the job to be done, cable and job IDs, and any relevant information about what is being tested. To enter general information: 1.
Setting Up the Instrument in WDM Mode Defining Preferences 2. Select the General tab. 3. Define the general parameters as needed. 4. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Clear to clear all the changes made in the General tab.
Setting Up the Instrument in WDM Mode Defining Preferences To enter link and location information: 1. From the Main Menu, press Preferences. 2. Select the Information tab.
Setting Up the Instrument in WDM Mode Defining Preferences 3. Under System and link information, define the following parameters as needed: Link ID prefix: The prefix value for the link ID. You can enter any alphanumeric value. Starting value: The suffix increment starting value for the link ID. This value is incremented each time a new file is saved provided the Auto Increment option is selected.
Setting Up the Instrument in WDM Mode Defining Preferences 4. Under Location Information, define the following parameters as needed: Network element: Sets the type of network element. Test point: Sets the location where the test is performed on the link. Description: Enter the description of location if required. 5. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Restore Defaults to remove all the changes and apply the default values.
Setting Up the Instrument in WDM Mode Defining Preferences To enter comments: 1. From the Main Menu, press Preferences.
Setting Up the Instrument in WDM Mode Defining Preferences 2. Select the Comments tab. 3. Enter your comments for the current trace. 4. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Clear to clear all the changes made in the Comments tab.
Setting Up the Instrument in WDM Mode Defining Preferences Defining Display Parameters The application allows you to set display settings for the acquisition trace. You can set the spectral unit for the trace and the results table. You can also select the label that should appear on the peaks of the trace. To define display parameters: 1. From the Main Menu, press Preferences.
Setting Up the Instrument in WDM Mode Defining Preferences 2. Select the Display tab. 3. Select the spectral unit you want to work with, either nm or THz.
Setting Up the Instrument in WDM Mode Defining Preferences 4. Select the label that will appear on the peaks in the graph, either the channel name, its number, or nothing.
Setting Up the Instrument in WDM Mode Defining Preferences Note: The channel name and channel number cannot be shown at the same time.
Setting Up the Instrument in WDM Mode Defining Preferences 5. Select whether you want to show or hide the empty channels from the channel list in the Results tab. Note: When selected, empty channels are shown on screen and in the report files.
Setting Up the Instrument in WDM Mode Defining Preferences 6. Select whether you want to show the horizontal markers or the integrated power and the trace in the marker toolbar.
Setting Up the Instrument in WDM Mode Defining Preferences 7. Select the background color scheme for the graph as desired. 8. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Restore Defaults to remove all the changes and apply the default values.
Setting Up the Instrument in WDM Mode Defining Preferences Customizing WDM Results Table It is possible to select which results you would like to be displayed in the Results tab of your WDM tests. To customize the results table: 1. From the Main Menu, press Preferences.
Setting Up the Instrument in WDM Mode Defining Preferences 2. Select the WDM Results tab. 3. Select which parameters you want to display in the Results tab from the list of available choices: 58 Name: name of channel. (Center wavelength/frequency): spectral center-of-mass for the peak in that channel. Signal Power: signal power for the selected channel (excludes noise).
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters /f : deviation of the spectral center of mass for the peak in that channel. /f Peak: spectral peak in that channel. /f Peak: deviation of the spectral peak in that channel. 4. Press the up or down arrows to change the order in which the columns will appear in the Results tab. 5. Press OK to save the changes and close the window, or press Cancel to exit without saving.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters To import the parameters from the current trace: 1. Make sure that you have a trace on-screen. 2. From the Main Menu, press Analysis Setup.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 3. From any tab, press Import from Trace. 4. Press OK to confirm the changes.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Defining General Settings The general analysis parameters for WDM acquisitions affect the calculation of the results. Any change you make to the settings affect future traces, or you can apply them to the active trace when reanalyzing it. IMPORTANT In the General tab, you can set the default channel parameters.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 2. Select the General tab.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 3. Under Default channel settings, define the following parameters as needed: 64 Clear the Activate default channel option to use the currently defined channel list for analysis. This reduces the analysis time by eliminating the peak detection over the complete spectral range. The peaks outside the defined channel list will not be analyzed.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Channel width (GHz or nm): indicates the limit inside which the power values will be considered in the channel. For default channels, the channel width that sets the limits of the channel, should be the same as the channel distance or smaller (channel distance is defined while creating a channel list).
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Peak signal power: The peak signal power represents the maximum power value inside the channel. Note that it differs a little from the peak measurement on the spectrum due to the fact that the estimated noise is subtracted to get the peak signal power. Total channel power: The total channel power represents the sum of the integrated signal power and of the noise within the channel.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Fifth order polynomial fit (Fit): The fifth order polyfit method calculates the noise curve and thus the signal to noise ratio. The OSA will approximate the noise curve using a fifth order polynomial fit. This fit definition relies on fit and exclusion zones. Only the points in the fit zones are used to calculate the fifth order polynomial fit.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 4. Under Global analysis parameters, define the following parameters as needed: 68 Peak detection level (dBm): indicates the minimum power level from where the peak can be considered as a signal. RBW for OSNR (nm): indicates the resolution bandwidth selected for the OSNR calculation. This parameter is generally set to 0.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Wavelength offset (nm): indicates the offset value applied on the wavelength. This does not replace a calibration performed at EXFO, but it can help you temporarily sharpen the specifications if you have determined that, for example, your modules are used beyond the normal allowed use. Entering a value in THz is not possible. When an offset is applied, it is indicated at the bottom of the graph ( ).
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Defining Global Thresholds Any change you make to the global threshold settings affect future traces, or you can apply them to the active trace when reanalyzing it. The application allows you to activate and deactivate the threshold functionality with a single control. When thresholds are globally enabled, the results are displayed with the Pass/Fail status based on various settings (global results, channel results).
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters You can set your pass/fail threshold limits in different ways depending on the type of test you are performing. Threshold Limit Definition None No threshold limit is set. The results will be displayed without a Pass/Fail verdict. Min. only The threshold limit is set for a minimum value only. The Pass/Fail verdict is declared as Pass (in green), when the value is equal to or greater than the minimum threshold set.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters To define global thresholds: 1. From the Main Menu, press Analysis Setup. 2. Select the Global Thresholds tab.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 3. Select the Activate all thresholds option to manually set the global threshold values. If this option is not selected, all the thresholds will be deactivated, results are displayed without a Pass/Fail status and Global pass/fail status are not active in the Global Results tab. 4.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 5. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Restore Defaults to remove all the changes and apply the default values. Defining Default Thresholds Default thresholds will be applied to any channel found outside the channel list during the acquisition or re-analysis.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters You can set your pass/fail threshold limits in different ways depending on the type of test you are performing. Threshold Limit Definition None No threshold limit is set. The results will be displayed without a Pass/Fail verdict. Min. only The threshold limit is set for a minimum value only. The Pass/Fail verdict is declared as Pass (in green), when the value is equal to or greater than the minimum threshold set.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters To define default Thresholds: 1. From the Main Menu, press Analysis Setup.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 2. Select the Default Thresholds tab. 3. Enter values in the boxes as explained below: Wavelength/Frequency (nm/GHz): the channel’s central wavelength/frequency. Signal power (dBm): the signal power for the default channel (excludes noise). Noise (dBm): the level of the noise for the selected channel.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Managing Channels Testing DWDM systems involves characterizing multiple signals in a link. The application allows you to define channels using a channel editor or quickly generate them from the current data. You can also rapidly create a list of equally spaced channels. Once a channel list is created, you can modify it as needed. You can edit the analysis parameters for one channel or multiple channels.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 2. Select the Channels tab. 3. By default, the channel list is empty. Press Add Channels.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 4. Enter values in the boxes as explained below: Start range (nm or THz): starting range of the channel list. Stop range (nm or THz): ending range of the channel list. Channel center wavelength/frequency: spectral center-of-mass for the peak in that channel.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters Starting value: sets the increment starting value for the channel name in the channel list. Increment value: sets the increment value for the channel name in the channel list. 5. Press OK to return to the Channels window, which now lists the added channels. Note: When new channels are added, the Use Default thresholds selection will be applied to the channel parameters.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters To edit the parameters of a specific channel: 1. From the Main Menu, press Analysis Setup.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 2. Select the Channels tab. 3. Select the channel or channels to be modified in the channel list. If you want the changes to be applied to all of your channels, press Select All. Channels can be selected one by one or all together. You can press Unselect All to clear all channel selections. To delete the selected channels, press Delete.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 4. Press Edit Selection.
Setting Up the Instrument in WDM Mode Setting Up WDM Analysis Parameters 5. Modify the settings as needed. For more information about the settings, see Defining General Settings on page 62 and Defining Default Thresholds on page 74. If you leave a box empty, it will remain as it was before your changes. Modify appropriate settings. 6. Press OK to return to the Channels tab, which now contains the modified settings. 7.
Setting Up the Instrument in WDM Mode Setting Up Acquisition Parameters Setting Up Acquisition Parameters Before performing your test, you must set the acquisition type and parameters. There are three types of acquisitions in WDM mode: 86 Single: Spectral measurement is performed once. The results are displayed according to this measurement. Averaging: Spectral measurements are performed based on the number of scans that you have entered for this parameter.
Setting Up the Instrument in WDM Mode Setting Up Acquisition Parameters Before performing measurements on an optical spectrum, you must select the wavelength/frequency range to use. You can perform the scan on the full range, on spectral bands, or select a custom range. Note: The shorter the wavelength or frequency range, the faster the acquisition. To set parameters in the Acquisition tab: 1. From the main window, select the Acquisition tab. 2. Select the acquisition type.
Setting Up the Instrument in WDM Mode Setting Up Acquisition Parameters 3. If you are performing an averaging type acquisition, enter the number of scans the unit will perform. 4. Select the wavelength range for your acquisition. You can select the wavelength range by entering the start and stop values or by selecting a range on the double slider. To select the wavelength range using the double slider, move the left and right handles on the double slider or simply click on any band.
Setting Up the Instrument in WDM Mode Setting Up Acquisition Parameters The wavelength range covered within these bands of the spectra are listed below. OSA/OCA O band (original): 1255 to 1365 nm E band (extended): 1355 to 1465 nm S band (short wavelengths): 1455 to 1535 nm C band (conventional “erbium window”): 1525 to 1570 nm L band (long wavelengths): 1560 to 1630 nm U band (ultralong wavelengths): 1620 to 1650 nm.
6 Setting Up the Instrument in Drift Mode Note: This mode is not available in the OCA application. Before performing a spectral analysis in the Drift mode, you must set up the test application with the appropriate parameters, as explained in this chapter. Select the Drift test mode as explained in Selecting a Test Mode on page 18 before setting up the Drift test parameters.
Setting Up the Instrument in Drift Mode You can set up your unit in different manners, depending on your testing needs. 92 The preferred way is to use the complete analysis setup parameters and complete the information in all tables, as explained in Setting Up Drift Analysis Parameters on page 107. This setup will be used for the next acquisition.
Setting Up the Instrument in Drift Mode Defining Preferences Defining Preferences The preferences window allows you to set general information and comments on trace, set display parameters and customize the drift results table. Note: Only the Display and Drift Results tabs are available in offline mode. Defining Trace Information The trace information relates to the description of the job to be done, cable and job IDs, and any relevant information about what is being tested.
Setting Up the Instrument in Drift Mode Defining Preferences 2. Select the General tab. 3. Define the general parameters as needed. 4. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Clear to clear all the changes made in the General tab.
Setting Up the Instrument in Drift Mode Defining Preferences To enter link and location information: 1. From the Main Menu, press Preferences. 2. Select the Information tab.
Setting Up the Instrument in Drift Mode Defining Preferences 3. Under System and link information, define the following parameters as needed: Link ID prefix: prefix value for the link ID. You can enter any alphanumeric value. Starting value: suffix increment starting value for the link ID. This value is incremented each time a new file is saved provided the Auto Increment option is selected.
Setting Up the Instrument in Drift Mode Defining Preferences To enter comments: 1. From the Main Menu, press Preferences.
Setting Up the Instrument in Drift Mode Defining Preferences 2. Select the Comments tab. 3. Enter your comments for the current trace. 4. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Clear to clear all the changes made in the Comments tab.
Setting Up the Instrument in Drift Mode Defining Preferences Defining Display Parameters The application allows you to set display settings for the acquisition trace. You can set the spectral unit for the trace and the results table. You can also select the label that should appear on the peaks of the trace. To define display parameters: 1. From the Main Menu, press Preferences.
Setting Up the Instrument in Drift Mode Defining Preferences 2. Select the Display tab. 3. Select the spectral unit you want to work with, either nm or THz.
Setting Up the Instrument in Drift Mode Defining Preferences 4. Select the label that will appear on the peaks in the graph, either the channel name, its number, or nothing.
Setting Up the Instrument in Drift Mode Defining Preferences Note: The channel name and channel number cannot be shown at the same time.
Setting Up the Instrument in Drift Mode Defining Preferences 5. Select whether you want to show or hide the empty channels from the channel list in the Dashboard, Channel Graph, Channel Results and Channel History tabs. 6. Select whether you want to show the horizontal markers or the integrated power trace in the marker toolbar.
Setting Up the Instrument in Drift Mode Defining Preferences 7. Select the background color scheme for the graph as desired. 8. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Restore Defaults to remove all the changes and apply the default values.
Setting Up the Instrument in Drift Mode Defining Preferences Customizing Drift Results Table It is possible to select which results you would like to be displayed in the Results tab of your Drift tests. To customize the results table: 1. From the Main Menu, press Preferences.
Setting Up the Instrument in Drift Mode Defining Preferences 2. Select the Drift Results tab. 3. Select which parameters you want to display in the Channel Graph tab from the list of available choices: Center wavelength/frequency: spectral center-of-mass for the peak in that channel. Signal Power: signal power for the selected channel (excludes noise).
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Setting Up Drift Analysis Parameters This section presents the various analysis settings for the application, particularly the channel list and settings. These settings are applied on subsequent acquisitions. You can set the channel list, global thresholds, default channel thresholds, channel parameters, manage favorite configurations and perform user calibration.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 3. From any tab, press Import from Trace. 4. Press OK to confirm the changes.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Defining General Settings The general analysis parameters for drift acquisitions affect the calculation of the results. These calculations take place after an acquisition. If these settings are modified, they will be applied to the next acquisition. IMPORTANT In the General tab, you can set the default channel parameters.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 2. Select the General tab.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 3. Under Default channel settings, define the following parameters as needed: OSA/OCA Clear the Activate default channel selection, to use the currently defined channel for analysis. This reduces the analysis time by eliminating the peak detection over the complete spectral range. The peaks outside the defined channel list will not be analyzed.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Channel width (GHz or nm): indicates the limit inside which the power values will be considered in the channel. For default channels, the channel width that sets the limits of the channel, should be the same as the channel distance or smaller (channel distance is defined while creating a channel list).
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Peak signal power: The peak signal power represents the maximum power value inside the channel. Note that it differs a little from the peak measurement on the spectrum due to the fact that the estimated noise is subtracted to get the peak signal power. Total channel power: The total channel power represents the sum of the integrated signal power and of the noise within the channel.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Fifth order polynomial fit (Fit): The fifth order polyfit method calculates the noise curve and thus the signal to noise ratio. The OSA will approximate the noise curve using a fifth order polynomial fit. This fit definition relies on fit and exclusion zones. Only the points in the fit zones are used to calculate the fifth order polynomial fit.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 4. Under Global analysis parameters, define the following parameters as needed: OSA/OCA Peak detection level (dBm): indicates the minimum power level from where the peak can be considered as a signal. RBW for OSNR (nm): indicates the resolution bandwidth selected for the OSNR calculation. This parameter is generally set to 0.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Wavelength offset (nm): indicates the offset value applied on the wavelength. This does not replace a calibration performed at EXFO, but it can help you temporarily sharpen the specifications if you have determined that, for example, your modules are used beyond the normal allowed use. Entering a value in THz is not possible. When an offset is applied, it is indicated at the bottom of the graph ( ).
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Defining Default Channel Thresholds The thresholds will be applied to any channel found outside the channel list during the next acquisition. Thresholds will be applied to the channel results during the next acquisition. The application allows you to activate and deactivate the threshold functionality with a single control.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters When thresholds are globally disabled, the results in the Channel Results tab are also displayed without a Pass/Fail status.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters You can set your pass/fail threshold limits in different ways depending on the type of test you are performing. Threshold Limit Definition None No threshold limit is set. The results will be displayed without a Pass/Fail verdict. Min only The threshold limit is set for a minimum value only. The Pass/Fail verdict is declared as Pass (in green), when the value is equal to or greater than the minimum threshold set.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters To define the default channel thresholds: 1. From the Main Menu, press Analysis Setup.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 2. Select the Thresholds tab.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 3. Select the Activate all thresholds option to manually set the channel threshold values. If this option is not selected, all the thresholds will be deactivated, results are displayed without a Pass/Fail status in the Channel Graph, Channel History and Channel Results tabs. 4. Enter values in the boxes as explained below: Wavelength/Frequency (nm/GHz): central wavelength/frequency of the channel.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Managing Channels Testing DWDM systems involves characterizing multiple signals in a link. The application allows you to define channels using a channel editor or quickly generate them from the current data. You can also rapidly create a list of equally spaced channels. Once a channel list is created, you can modify it as needed. You can edit the analysis parameters for one channel or multiple channels.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 2. Select the Channels tab. 3. By default, the channel list is empty. Press Add Channels.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 4. Enter values in the boxes as explained below: Start range (nm or THz): starting range of the channel list. Stop range (nm or THz): ending range of the channel list. Channel center wavelength/frequency: spectral center-of-mass for the peak in that channel.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters Channel distance (nm or GHz): distance between the channels. The value of channel distance will be set depending on the selection made for the channel center wavelength option. The channel distance box will be enabled only when the channel center wavelength option is set to custom. Channel width (nm or GHz): limit inside which the power values will be considered in the channel.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters To edit the parameters of a specific channel: 1. From the Main Menu, press Analysis Setup.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 2. Select the Channels tab.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 3. Select the channel or channels to be modified in the channel list. If you want the changes to be applied to all of your channels, press Select All. Channels can be selected one by one or all together. You can press Unselect All to clear all channel selections. To delete the selected channels, press Delete. 4. Press Edit Selection.
Setting Up the Instrument in Drift Mode Setting Up Drift Analysis Parameters 5. Modify the settings as needed. For more information about the settings, see Managing Channels on page 123. If you leave a box empty, it will remain as it was before your changes. Modify appropriate settings. 6. Press OK to return to the Channels tab, which now contains the modified settings. 7. Press OK to save the changes and close the window, or press Cancel to exit without saving.
Setting Up the Instrument in Drift Mode Setting Up Acquisition Parameters Setting Up Acquisition Parameters Before performing your test, you must set the acquisition type and parameters from the Acquisition tab and other parameters from the Drift Settings tab. There are three types of acquisitions in Drift mode: single, averaging and InBand. Single: Spectral measurement is performed once. The results are displayed according to this measurement.
Setting Up the Instrument in Drift Mode Setting Up Acquisition Parameters To set parameters in the Acquisition tab: 1. From the main window, select the Acquisition tab.
Setting Up the Instrument in Drift Mode Setting Up Acquisition Parameters 2. Select the acquisition type. 3. If you are performing an averaging type acquisition, enter the number of scans the unit will perform. Note: You cannot modify the number of scans count value if you are performing a single acquisition. 4. Select the wavelength range for your acquisition. You can select the wavelength range by entering the start and stop values or by selecting a range on the double slider.
Setting Up the Instrument in Drift Mode Setting Up Acquisition Parameters The wavelength range covered within these bands of the spectra are listed below. O band (original): 1255 to 1365 nm E band (extended): 1355 to 1465 nm S band (short wavelengths): 1455 to 1535 nm C band (conventional “erbium window”): 1525 to 1570 nm L band (long wavelengths): 1560 to 1630 nm U band (ultralong wavelengths): 1620 to 1650 nm. To set parameters in the Drift Settings tab: 1.
Setting Up the Instrument in Drift Mode Setting Up Acquisition Parameters 3. Select a sampling unit and enter a sampling count to configure a time that should be elapsed between the start of each acquisition during a drift measurement. 4. Select a duration unit and enter a duration count to configure the total duration of a drift measurement. 5. Enter a drift file name that should be used to save the drift file. Note: This is not available in offline mode.
Setting Up the Instrument in Drift Mode Setting Up Acquisition Parameters 6. Select a location where the drift file should be saved. 7. Select whether you want to keep all of the historical traces in the subfolder, keep only the significant ones, or keep none. The historical traces are stored in separate *.osawdm files. A significant event is when a value from a given channel has crossed its threshold (going from pass to fail). there is no signal power in a given channel.
Setting Up the Instrument in Drift Mode Setting Up Acquisition Parameters 8. To test your parameters, return to the Acquisition tab. Press Trial Scan to perform a trial acquisition. When a trial acquisition is running, the Start button is disabled. You are notified that the acquisition is in progress in the status bar. The trial scan is performed using the analysis setup parameters. When the acquisition is complete, the resulting acquisition is displayed in the WDM Graph tab and Channel Results tab.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement Building a Custom Drift Measurement You can build a drift measurement using a WDM measurement you already have as a reference. The selected channels and thresholds can be imported from the analysis setup or the reference measurement. A custom drift measurement is particularly useful for offline processing of your data over time and comparing result variations.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement Criteria Acquisition start time Test Target WDM measurement Compatible Target WDM measurement Incompatible acquisition start time is identical to another WDM measurement (including the drift reference trace) acquisition time. acquisition start time overlaps with another WDM measurement (including the drift reference trace) acquisition time range.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement Criteria Test Compatibility Status Power offset Target WDM measurement power offset differs from drift reference trace power offset Compatible with warnings Wavelength offset Target WDM measurement Compatible wavelength offset differs from drift with warnings reference trace wavelength offset Compatible Noise measurement Target WDM measurement with warnings acquired trace data does not support configured noise measurement a
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement To build a custom drift measurement: 1. If you have not done so already, select the Drift test mode. 2. From the main window, select Custom Build. 3. Select the reference trace you want to use to build the measurement, then click Next.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement 4. Select whether you want to import the analysis setup from the selected reference file, or use the settings currently set in your application, then click Next.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement 5. Enter, or review if they were imported, the general details for your measurement. See Defining General Settings on page 109 for details on each item. 6. Click Next.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement 7. If desired, adjust the threshold settings for your measurement. For details on each item, see Defining Default Channel Thresholds on page 117. When you are done, click Next.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement 8. Select which channels are to be included in the drift measurement. For details on each item, see Managing Channels on page 123. When you are done, click Next.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement 9. Add one or more measurement files at this point, then click Next.
Setting Up the Instrument in Drift Mode Building a Custom Drift Measurement 10. Before starting the measurement process, you can select what to do with the historical traces (keep them all, keep only the significant ones, or keep none), set the drift file name and its location. 11. Once you are ready, click Build. Once the process is complete, you can navigate through the results of the built drift.
7 Setting Up Your OCA Performing a spectral analysis with your Optical Channel Analyzer (OCA) is simple and can be achieved after selecting a few parameters. Before performing your test, you must set the acquisition type and channel plan. Your OCA features two types of acquisitions: Single: Spectral measurement is performed once. The results are displayed according to this measurement. Real-Time: In real-time acquisition, spectral measurements are performed continuously until you press Stop.
Setting Up Your OCA To set parameters in the Acquisition tab: 1. From the main window, select the Acquisition tab. 2. Select the acquisition type. 3. Select the channel plan to use.
Setting Up Your OCA To create a channel plan and use it as one of the Custom channel plans: 1. Start the post-processing application on a computer, and select the WDM test mode. 2. From the Main Menu, select Analysis Setup. 3. Create the channel plan: If you want to start from an existing configuration, import the configuration to use in the Favorites tab, or select a configuration already in the list, then click Apply Selection.
Setting Up Your OCA 7. In Windows Explorer, rename the extension of your file from .osawdmsetup to .ocawdmsetup. 8. Using a USB key or network connection, place the renamed file in the [...]\Configuration Files\OCA\Favorites folder of your unit. Confirm the overwrite of the existing Custom file if needed. Note: If you want to modify an existing Custom channel plan, make a copy of it in Windows Explorer, and rename it with the .
8 Starting a Measurement Before starting a measurement you must select and configure a test mode. You will find the instructions to select a test mode in Selecting a Test Mode on page 18. For instructions on configuring various test modes, see their respective sections. Note: You cannot start a measurement in offline mode. To start the measurement: From the main window, Press Start. The button will turn into a Stop button. You are notified that the acquisition is in progress in the status bar.
9 Managing Files and Test Configurations Using the Discover Feature The Discover feature allows you to start a measurement procedure to automatically build an analysis setup (scan range, channel list, analysis parameters, etc.) based on the signal being detected on the input port of the module. Note: The Discover feature is not available on the OCA application. The procedure starts with a full range single scan (1250 nm to 1650 nm) to determine signal spectral range.
Managing Files and Test Configurations Using the Discover Feature Discover analysis parameters are established as follows: The acquisition spectral range is set at 5 nm before the first detected signal peak, and 5 nm after the last detected signal peak (respecting spectral range limits). A channel list is created based on detected signal peaks; default settings are applied for all channel parameters.
Managing Files and Test Configurations Using the Discover Feature To start an automatic setup measurement: Note: You cannot do a setup measurement in offline mode. From the Main Menu, press Discover. The Start button turns into a Stop button and the first scan of the discover starts. Note: If you already have an active trace on screen that was modified, you will be prompted to save it. Any reference trace will be cleared. You are notified that the discover acquisition is in progress in the status bar.
Managing Files and Test Configurations Managing Measurement Files Managing Measurement Files The application allows you to manage the measurement files. You can save files for future reference, open files to continue a test, or clear them to make room on your unit. Note: You cannot open OCA files in the OSA application, nor OSA files in the OCA application. To save files: 1. From the Main Menu, Press File, and then press Save As (for the OCA application, there is no File menu).
Managing Files and Test Configurations Managing Measurement Files To open a file: 1. From the Main Menu, Press File, and then press Open (for the OCA application, there is no File menu). OR From the main window, press . 2. If you had already acquired (but not saved) a trace, a warning window appears, asking you if you want to save the current trace. Press Yes to save the trace. Once the trace is saved, you can open a new trace. Press No to display the new trace without saving the previously acquired one.
Managing Files and Test Configurations Managing Measurement Files 3. Scroll through the list and select a trace to open. 4. If you are in WDM mode, select whether the trace will be loaded as the active trace or the reference trace. You can select whether you want to also import the trace configuration and overwrite the current analysis setup and acquisition context at the same time that you open the file. The file type must be the same for the configuration importation to be valid.
Managing Files and Test Configurations Managing Measurement Files To clear a file: 1. From the Main Menu, Press File. (for the OCA application, skip step 1) 2. Press New. 3. If you had already acquired (but not saved) a trace, a warning window appears, asking you if you want to save the current trace. Press Yes to save the trace. Once the trace is saved, you can make room for a new trace. Press No to create a new trace without saving the previously acquired one.
Managing Files and Test Configurations Opening Other Test Mode Files in WDM Mode Opening Other Test Mode Files in WDM Mode Your application allows you to open different file types in WDM mode. Note: This feature is not available in the OCA application. While loading a spectral transmittance (.osast) file, the application will re-analyze the newly imported data using the current WDM analysis setup. While loading a legacy (.osw /.
Managing Files and Test Configurations Managing Favorites Managing Favorites Favorites are configuration files that contain all of the parameters from the Analysis Setup tab and Acquisition tab. When you often use the same settings, you can save them as a favorite, then recall them for future acquisitions. Note: The Favorites feature is not available for the OCA application. To load a test configuration: 1. From the Main Menu, press Analysis Setup. OR From the main window, press OSA/OCA .
Managing Files and Test Configurations Managing Favorites 2. Select the Favorites tab.
Managing Files and Test Configurations Managing Favorites 3. To apply the settings from a favorite file to the current analysis setup, select a file from the favorites list and press Apply Selection. This button will be enabled only when a file is selected from the favorites list. When you press Apply Selection, the contents of the file are loaded in the other tabs of this window. 4. Press OK to proceed with the loaded configuration and close the window, or press Cancel to exit without saving.
Managing Files and Test Configurations Managing Favorites To save a test configuration: 1. From the Main Menu, press Analysis Setup. OR From the main window, press 166 .
Managing Files and Test Configurations Managing Favorites 2. Select the Favorites tab. 3. To save an analysis setup to a file, press Save As. The default folder where the file will be saved is the Favorites folder. You should use this folder unless you want to transfer a copy on an external storing device such as a USB stick.
Managing Files and Test Configurations Managing Favorites 4. In the Save As window, enter a file name and press Save. The file will be added to the favorites list in the Analysis Setup – Favorites tab. 5. Press Save to save the configuration and close the window, or press Cancel to exit without saving. To import a test configuration: 1. From the Main Menu, press Analysis Setup. OR From the main window, press 168 .
Managing Files and Test Configurations Managing Favorites 2. Select the Favorites tab. 3. Press Import to import an analysis setup from a file.
Managing Files and Test Configurations Managing Favorites 4. From the Import window, select the file you want to import and press Open. The file will be added to the favorites list in the Analysis Setup – Favorites tab. 5. Press OK to load the configuration and close the window, or press Cancel to exit without saving. Note: To load this newly imported test configuration, you must select it from the favorites list and press Apply Selection.
Managing Files and Test Configurations Managing Favorites To delete a test configuration: 1. From the Main Menu, press Analysis Setup. OR From the main window, press OSA/OCA .
Managing Files and Test Configurations Managing Favorites 2. Select the Favorites tab.
Managing Files and Test Configurations Importing a Configuration from the Current Trace 3. To delete a configuration file from the favorites list, select it and press Delete. Press Yes to confirm your choice. Importing a Configuration from the Current Trace In the OSA application, you can import the analysis and channel configuration from the measurement file currently on-screen.See Setting Up WDM Analysis Parameters on page 59 for details.
10 Managing Results Each test mode has its own results tabs, where you can view the trace details, channel results and global results for all measured channels. You can use zoom options on the trace, configure markers to view the power values for specific wavelengths (OSA only), and view trace information. You can also manage trace files and generate reports for all test modes. Note: When a power result is flagged using an asterisk ( * ), it means that the detector is saturated.
Managing Results Managing WDM Test Results Managing WDM Test Results The application allows you to view and manage your WDM test results. You can view the graph of your acquisition, results for a single channel, global results and information about the trace. Graph Tab The Graph tab allows you to view the spectrum of the active and reference traces. This graph represents the optical power against wavelength or frequency.
Managing Results Managing WDM Test Results When the acquisition is taken (see Starting a Measurement on page 153 for details on how to perform a test), the active trace will be displayed in the tab with information along the following axis values: X axis: wavelength in nm or frequency in THz. Y axis: optical power expressed in dBm, as measured in the optical resolution bandwidth (RBW) of the OSA/OCA. This reference RBW is shown at the bottom of the graph.
Managing Results Managing WDM Test Results The selected peak indicator, a small red inverted triangle ( ) points down at the top of the currently selected channel peak. In the graph zone, you can change the selected peak by clicking inside the peak limits of the desired channel. Peak selection in the graph is synchronized with the channel selection in lower tab results list; changing the selection in the graph modifies the selection in the list and vice-versa.
Managing Results Managing WDM Test Results The noise level for a channel is indicated by a dotted line under the selected peak. The width of the noise level indicator is set according to the current Noise for OSNR setting. The width of the noise level indicator depends on the noise associated with the OSNR setting (from the largest to the narrowest): IEC, InB, InB nf and fit. A dotted line across the full spectral width corresponds to the peak detection level indicator.
Managing Results Managing WDM Test Results You can move the cursor to modify the peak detection level for the current measurement.Each time the cursor is moved, the trace(s) is/are fully analyzed again using the application analysis setup. Note: If you select another tab than Results, the cursor disappears, but you can still see the peak detection level indicator line. Note: If there is a reference trace, it appears in gray in the graph.
Managing Results Managing WDM Test Results Results Tab In the Results tab, each channel will be represented for both the active and reference traces, with the delta between both results. Only the results for the channels within the scan range will be analyzed. The pass ( )/fail ( ) verdict for thresholds are also displayed; if the verdict is fail for any parameter, its value will appear in red. To view results: From the main window, select the Results tab.
Managing Results Managing WDM Test Results Channel Results Tab The application allows you to view the complete information about the parameters measured for the selected channel. This is also where the pass/fail verdict for thresholds are displayed. If the verdict is fail for any parameter, its value will appear in red. If the verdict is pass, its value will appear in green. To view channel results: 1. From the main window, select Channel Results tab.
Managing Results Managing WDM Test Results 2. Select a row from the Results tab to view the results for this channel. Note: Values displayed in the Channel Result tabs are those of the active trace only. Note: For details on each result type, see Customizing WDM Results Table on page 57 and Defining General Settings on page 62. Note: The wavelength/frequency deviation is the difference between the channel center wavelength/frequency and the measured signal center wavelength/frequency.
Managing Results Managing WDM Test Results Global Results Tab The application allows you to view the global results of the current measurement. The pass/fail verdict for thresholds are displayed in the Global Results tab. If the verdict is fail for any parameter, its value appears in red. If the verdict is pass, its value appears in green. To view global results: From the main window, select the Global Results tab. Results and analysis parameters global to all channels will be displayed.
Managing Results Managing Drift Test Results Managing Drift Test Results The application allows you to view and manage your drift test results. You can view the dashboard, channel graph and WDM graph of your drift acquisition, channel history results for a single channel and information about the trace. Dashboard Tab The dashboard allows you to view at-a-glance the pass/fail status of each parameter for each channel that is measured during a drift measurement.
Managing Results Managing Drift Test Results You can select a channel directly from the dashboard or from the Channel History tab. For each channel, the dashboard displays the pass/fail status for each of the following parameters: Central wavelength/frequency Signal power OSNR Both the current pass/fail status (last completed acquisition) and the historical pass/fail status are displayed in the dashboard.
Managing Results Managing Drift Test Results The dashboard shows a global status (all channels) for each parameter. This global status is set to Fail if at least one channel has a failed historical status for that given parameter, otherwise the global status is set to Pass.
Managing Results Managing Drift Test Results The dashboard displays a channel status (all parameters) for a given channel. This channel status is set to Fail as soon as one of the parameters has a failed historical status for that given channel, otherwise the channel status is set to Pass.
Managing Results Managing Drift Test Results Channel Graph Tab The Channel Graph tab displays three different graphs for the selected channel. You can select which graphs you want to display from the Drift Results tab in the Preferences Window.
Managing Results Managing Drift Test Results Channel History Tab The channel history table shows channel results for the active trace. The result is displayed for the selected channel only. The pass/fail verdict for thresholds are also displayed in the results table. If the verdict is fail for any parameter, its value will appear in red. The application displays the progress of the measurement in the status bar, while the acquisition is taken.
Managing Results Managing Drift Test Results For each of the above parameters, the following results are displayed: Reference: channel reference values for the current drift acquired during the initial acquisition. Current Drift: current drift values, that is, the current deviation from the channel’s reference for the drift’s latest acquisition. Maximum: maximum values reached during the drift. T Max.: time of the drift at which the channel was at its maximum value.
Managing Results Managing Drift Test Results WDM Graph Tab The WDM Graph tab allows you to view the spectrum of the active trace for the last WDM acquisition in your drift measurement. This graph represents the optical power versus wavelength or frequency.
Managing Results Managing Drift Test Results When the acquisition is taken (see Starting a Measurement on page 153 for details on how to perform a test), the active trace will be displayed in the tab with information along the following axis values: X axis: wavelength in nm or frequency in THz. Y axis: optical power expressed in dBm, as measured in the optical resolution bandwidth (RBW) of the OSA/OCA. This reference RBW is shown at the bottom of the graph.
Managing Results Managing Drift Test Results Channel Results Tab When you select a channel in the Channel History tab, the Channel Results tab will show complete information about the parameters measured for the selected channel. The pass/fail verdict for thresholds are also displayed in the Channel Results tab. If the verdict is fail for any parameter, its value appears in red. If the verdict is pass, its value appears in green. To view channel results: 1. From the main window, select Channel Results tab.
Managing Results Managing Drift Test Results 2. Select a channel from the Channel History tab to view the channel results for the selected channel. Note: For details on each item, see Customizing WDM Results Table on page 57 and Defining General Settings on page 62.
Managing Results Managing OCA Test Results Managing OCA Test Results The application allows you to view and manage your OCA test results. You can view the graph of your acquisition, channel results, total power, and information about the trace. Note: OCA measurement files (.ocawdm) are not compatible with the OSA application; they can only be opened by the OCA application.
Managing Results Managing OCA Test Results When the acquisition is taken (see Starting a Measurement on page 153 for details on how to perform a test), the trace will be displayed in the graph with information along the following axis values: X axis: wavelength in nm. Y axis: optical power expressed in dBm, as measured in the optical resolution bandwidth (RBW) of the module. This reference RBW is shown at the bottom of the graph.
Managing Results Managing OCA Test Results The graph will display peak indicators for all the channels found by the application with a red vertical line over the peaks to indicate the peak position. A blue horizontal bar ( ) will be displayed on the top of a channel if it does not overlap with another channel. If the channel overlaps with another channel, the horizontal bar will be yellow ( ).
Managing Results Managing OCA Test Results The graph will also display a dotted line across the full spectral width corresponding to the peak detection level indicator. This line indicates the minimum power level (dBm) from where a peak can be considered as a valid signal. A peak detection level cursor is available in the graph when the Results tab is selected. The cursor is positioned along the Y-axis in accordance with the channel plan default peak detection level analysis parameter.
Managing Results Managing OCA Test Results Results Tab The results table shows the current channel results for the trace and the total power in the scan range. Empty channel results will not be displayed in the channel list. To view results: From the main window, select the Results tab.
Managing Results Adjusting the Display Size Adjusting the Display Size Your application allows you to toggle the view of your main window. You can change the view of the upper and lower tabs from the normal view to 100 % upper tabs or 100 % lower tabs view. To adjust the display size: For 100 % upper tabs view, press OSA/OCA .
Managing Results Adjusting the Display Size For 100 % lower tabs view, press 202 .
Managing Results Viewing WDM Graph in Full-Screen Mode Viewing WDM Graph in Full-Screen Mode The full-screen mode allows you to see the WDM graph, including the markers, using the whole screen of your unit. It also displays three lines of results. If you have only an active trace, the results show three channels. If you have an active trace and a reference channel, you will see the results for one channel. Note: This feature is not available for the OCA module.
Managing Results Using Zoom Controls Using Zoom Controls Use the zoom controls to change the scale of the trace display. You can zoom in on or out of the graph using the corresponding buttons or let the application automatically adjust the zoom on the currently selected peak from the results table. You can quickly zoom in on or out of a selected peak. You can also return to the original graph value. The application provides an automatic zoom on peak feature.
Managing Results Using Zoom Controls To view specific portions of the graph: You can define which portion of the graph will be visible by pressing and dragging the graph with the stylus or your finger. You can also zoom in on a specific area by pressing and defining the zoom area with the stylus or your finger (a rectangle with dotted lines will appear to help you define the area). Once you release the stylus, the application automatically zooms in on the graph.
Managing Results Managing Markers Managing Markers You can use markers to perform manual measurements and verification directly on the trace. All test modes feature two vertical markers and two horizontal markers. The vertical markers are used to indicate the power level on the trace at the wavelength or frequency it is positioned, and the horizontal markers are used for indicating power at the level they are.
Managing Results Managing Markers You can also use the automated marker positioning to place the markers around a specific channel peak. The positions are set from the results grid, according to the following by default: A: set at the peak wavelength “ Peak(nm)” or frequency “ƒ peak(Thz)”. B: set at the wavelength/frequency which corresponds to a 3 dB drop from the peak maximum power (Signal power “p” without subtracting the noise). C: set at the peak power ( Peak).
Managing Results Managing Markers To manually enter a marker position value: 1. If you have not done so already, press the button on the top left-hand corner of the display to make the marker toolbar appear. 2. Set the marker by entering precise values in the box corresponding to it or by dragging it on-screen. As markers A and B appear on the graph, the following values will be displayed in the marker toolbar. 208 power values corresponding to the wavelength position of both markers.
Managing Results Managing Markers As markers C and D appear on the graph, the power difference between the markers (C-D) related to the horizontal markers will be displayed in the marker toolbar. You can also move the markers directly on the graph tab. Drag the marker to the desired area in the display. You will notice that the corresponding box in the marker toolbar changes according to the marker’s position. If you want to set a precise value for the marker, simply enter it in the box.
Managing Results Managing Trace Information Managing Trace Information After acquiring a trace, you might want to view details about the acquisition. The Trace Info. tab shows information related to acquisition parameters and conditions. You can also edit information about the tested fiber and job or add comments. This information is saved along with the trace.
Managing Results Managing Trace Information To edit general information: 1. From the main window, select the Trace Info. tab. 2. Press Trace Identification. Note: Trace identification is not available for the WDM reference trace. 3. Select the General tab. 4. Edit the general information as required. 5. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Clear to clear all the changes made in the General tab.
Managing Results Managing Trace Information To edit trace information: Note: This feature is not available in the OCA application. 1. From the main window, select the Trace Info. tab. 2. Press Trace Identification. 3. Select the Information tab. 4. Edit the information as required. 5. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Restore Defaults to remove all the changes and apply the default values.
Managing Results Managing Trace Information To edit comments: Note: This feature is not available in the OCA application. 1. From the main window, select the Trace Info. tab. 2. Press Trace Identification. 3. Select the Comments tab. 4. Edit comments in the Comments window for the current trace. 5. Press OK to save the changes and close the window, or press Cancel to exit without saving. Press Clear to clear all the changes made in the Comments tab.
Managing Results Generating Reports Generating Reports After performing any acquisition, you can generate a report for the current acquisition and save it in .html, PDF or .txt format depending on the supported file type for your test mode. The report file will include trace information, acquisition conditions and other results and details specific to each test mode. Note: Empty channels that are shown on screen are included in the report files. To generate a report: 1.
Managing Results Generating Reports 4. From the Save as type list, select the format for your report. 5. Press Save. The report will be added to the Reports folder. You can change the location where you want to save the report as desired.
11 Maintenance To help ensure long, trouble-free operation: Always inspect fiber-optic connectors before using them and clean them if necessary. Keep the unit free of dust. Clean the unit casing and front panel with a cloth slightly dampened with water. Store unit at room temperature in a clean and dry area. Keep the unit out of direct sunlight. Avoid high humidity or significant temperature fluctuations. Avoid unnecessary shocks and vibrations.
Maintenance Cleaning EUI Connectors WARNING Looking into the optical connector while the light source is active WILL result in permanent eye damage. EXFO strongly recommends to TURN OFF the unit before proceeding with the cleaning procedure. To clean EUI connectors: 1. Remove the EUI from the instrument to expose the connector baseplate and ferrule. Turn Pull Push 2. Moisten a 2.5 mm cleaning tip with one drop of isopropyl alcohol (alcohol may leave traces if used abundantly). 3.
Maintenance Cleaning EUI Connectors 6. Clean the ferrule in the connector port as follows: 6a. Deposit one drop of isopropyl alcohol on a lint-free wiping cloth. IMPORTANT Isopropyl alcohol may leave residues if used abundantly or left to evaporate (about 10 seconds). Avoid contact between the tip of the bottle and the wiping cloth, and dry the surface quickly. 6b. Gently wipe the connector and ferrule. 6c.
Maintenance Recalibrating the Unit Recalibrating the Unit EXFO manufacturing and service center calibrations are based on the ISO/IEC 17025 standard (General Requirements for the Competence of Testing and Calibration Laboratories). This standard states that calibration documents must not contain a calibration interval and that the user is responsible for determining the re-calibration date according to the actual use of the instrument. The validity of specifications depends on operating conditions.
Maintenance Recycling and Disposal (Applies to European Union Only) To help you with calibration follow-up, EXFO provides a special calibration label that complies with the ISO/IEC 17025 standard and indicates the unit calibration date and provides space to indicate the due date.
12 Troubleshooting Viewing Online Documentation In addition to the online help available from the application, you will also find a printable PDF version on your installation DVD. To access online help: At the bottom of the Main Menu, tap OSA/OCA .
Troubleshooting Contacting the Technical Support Group Contacting the Technical Support Group To obtain after-sales service or technical support for this product, contact EXFO at one of the following numbers. The Technical Support Group is available to take your calls from Monday to Friday, 8:00 a.m. to 7:00 p.m. (Eastern Time in North America). Technical Support Group 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA 1 866 683-0155 (USA and Canada) Tel.: 1 418 683-5498 Fax: 1 418 683-9224 support@exfo.
Troubleshooting Contacting the Technical Support Group To view the information about the product: From the Main Menu, press OSA/OCA .
Troubleshooting Transportation Transportation Maintain a temperature range within specifications when transporting the unit. Transportation damage can occur from improper handling. The following steps are recommended to minimize the possibility of damage: Pack the unit in its original packing material when shipping. Avoid high humidity or large temperature fluctuations. Keep the unit out of direct sunlight. Avoid unnecessary shocks and vibrations.
Troubleshooting Transportation The following image show the GP-10-055 case with the module inside.
13 Warranty General Information EXFO Inc. (EXFO) warrants this equipment against defects in material and workmanship for a period of 1 year from the date of original shipment. EXFO also warrants that this equipment will meet applicable specifications under normal use.
Warranty Liability Liability EXFO shall not be liable for damages resulting from the use of the product, nor shall be responsible for any failure in the performance of other items to which the product is connected or the operation of any system of which the product may be a part. EXFO shall not be liable for damages resulting from improper usage or unauthorized modification of the product, its accompanying accessories and software.
Warranty Exclusions Exclusions EXFO reserves the right to make changes in the design or construction of any of its products at any time without incurring obligation to make any changes whatsoever on units purchased. Accessories, including but not limited to fuses, pilot lamps, batteries and universal interfaces (EUI) used with EXFO products are not covered by this warranty.
Warranty Service and Repairs Service and Repairs EXFO commits to providing product service and repair for five years following the date of purchase. To send any equipment for service or repair: 1. Call one of EXFO’s authorized service centers (see EXFO Service Centers Worldwide on page 233). Support personnel will determine if the equipment requires service, repair, or calibration. 2.
Warranty EXFO Service Centers Worldwide EXFO Service Centers Worldwide If your product requires servicing, contact your nearest authorized service center. EXFO Headquarters Service Center 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA EXFO Europe Service Center Winchester House, School Lane Chandlers Ford, Hampshire S053 4DG ENGLAND EXFO Telecom Equipment (Shenzhen) Ltd. 3rd Floor, Building 10, Yu Sheng Industrial Park (Gu Shu Crossing), No.
A Technical Specifications IMPORTANT The following technical specifications can change without notice. The information presented in this section is provided as a reference only. To obtain this product’s most recent technical specifications, visit the EXFO Web site at www.exfo.com. SPECTRAL MEASUREMENT Wavelength range (nm) 1250 to 1650 Wavelength uncertainty (nm) b ±0.05 ±0.02 c, d Reference Internal e Resolution bandwidth (FWHM) f (nm) 0.10 b, d Wavelength repeatability 2m (nm) ±0.
Index Index A acquisition averaging....................................... 86, 131 real-time ........................................ 86, 149 single ..................................... 86, 131, 149 type ....................................................... 36 activating default channel.............................. 64, 111 thresholds...................................... 73, 122 after-sales service ...................................... 224 analysis parameters drift ....................................
Index D F default channel, activating ........................ 64, 111 thresholds.............................................. 74 deleting test configuration ................................ 171 trace .................................................... 161 description of location .......................... 47, 96 detecting module.......................................... 9 detection level, peak ........................... 68, 115 deviation spectral center of mass ..........................
Index inserting a module ........................................ 7 integrated power ................................ 65, 112 ITU grid ............................................... 65, 112 L label, identification ................................... 224 level noise ................................................... 77 link ID........................................................... 36 information ........................................... 45 orientation.......................................
Index noise.............................................. 66, 113 resolution bandwidth ............................ 68 P parameters display ................................................... 50 drift ..................................................... 107 general .................................................. 62 pass threshold limits ................................. 119 PDF. see online user guide peak detection level ............................... 68, 115 indicator ..............................
Index flatness .................................................. 73 peak..................................................... 113 signal to noise ratio............................. 67, 114 single acquisition mode .............. 86, 131, 149 snap to ITU grid .................................. 65, 112 software packages ........................................ 3 software. see application spacing,channels ....................................... 126 specifications, product ..............................
Index WDM analysis parameters ............................... 59 general settings ..................................... 62 opening files in other formats ............. 162 results, customizing............................. 105 setting up mode .................................... 41 test results ........................................... 176 width,channels...................... 65, 80, 112, 126 Z zoom controls ...........................................
NOTICE 抩⛙ CHINESE REGULATION ON RESTRICTION OF HAZARDOUS SUBSTANCES ₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩ NAMES AND CONTENTS OF THE TOXIC OR HAZARDOUS SUBSTANCES OR ELEMENTS CONTAINED IN THIS EXFO PRODUCT ▔⚺⦷㦻 EXFO ℶ❐₼䤓㦘㹡㦘⹂䓸德㒥⏒侯䤓⚜䱿✛⚺摞 O X Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ/T11363-2006 嫷䯉年㦘㹡㦘⹂䓸德⦷年捷ↅ㓏㦘⧖德㧟㠨₼䤓⚺摞⧖⦷ SJ/T11363-2006 㪖屓⸩䤓 棟摞尐㻑ⅴₚᇭ Indicates that this toxic or hazardous substance contained in at least one of the
MARKING REQUIREMENTS 㪖㽷尐㻑 Product Environmental protection use period (years) Logo ℶ❐ 䘾⬒≬㔳∎䞷㦮棟 ( ) 㪖㉦ This Exfo product 㦻 EXFO ℶ❐ Batterya 䟄㻯 a a. If applicable.
P/N: 1065480 www.EXFO.com · info@exfo.com CORPORATE HEADQUARTERS 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA Tel.: 1 418 683-0211 · Fax: 1 418 683-2170 EXFO AMERICA 3400 Waterview Parkway Suite 100 Richardson, TX 75080 USA Tel.: 1 972-761-927 · Fax: 1 972-761-9067 EXFO EUROPE Winchester House, School Lane Chandlers Ford, Hampshire S053 4DG ENGLAND Tel.: +44 2380 246 800 · Fax: +44 2380 246 801 EXFO ASIA-PACIFIC 100 Beach Road, #25-01/03 Shaw Tower SINGAPORE 189702 Tel.
