User`s guide

Performance Tests Performance Test Instructions
52 Agilent 81689A, 81689B and 81649A Tunable Laser Modules User’s Guide, Third Edition
8 Measure the wavelength with the Wavelength Meter and note the
result in test record.
9 Repeat steps 6 through 8 with all wavelength settings given by “from
{wavelength} to REF” in the test record.
10 From all wavelength measurements pick the largest measured value
and the smallest measured value.
11 Calculate the wavelength repeatability by subtracting the largest
measured value from the smallest measured value.
Power Tests
Maximum Output Power
Make sure the instruments have warmed up before starting the
measurement.
NOTE • Absolute Power Accuracy is not specified.
• The result of the measurement below is greatly influenced by the
quality and the matching of the interconnections used.
1 Set up the equipment as shown in Figure 12.
Figure 12 Test Setup for the Maximum Output Power Tests
2 Set the Power Meter to the following settings:
a Select Automatic ranging. This is the default setting.
b Set the Averaging Time to 500 ms.
c Select dBm as the power units.
d While the laser is switched off, Zero the power meter. From
[Menu] press [Zero].
Agilent 8164A/B Lightwave
Measurement System
81626B
Tunable Laser
For #021, #071: use 81000FI and 81113PC
For #022, #072: use 81000SI and 81113SC
Slanted
Connector
Optical Head
81000SA
81618A