User`s guide

Specifications Optical Head Specifications
32 Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition
[1]
Reference conditions:
• Power level 10 µW
(-20 dBm), continuous wave (CW)
• Parallel beam, 3 mm spot diameter on the center of the detector
• Ambient temperature 23°C ± 5°C
• On day of calibration (add ± 0.3% foraging over one year, add ± 0.6% over two years)
• Spectral width of source < 10 nm (FWHM)
• Wavelength setting at power sensor must correspond to source wavelength ± 0.4nm
[2]
Operating Conditions:
• Parallel beam, 3mm spot diameter on the center of the detector or connectorized fiber with NA ≤0.2 (straight
connector)
•Averaging time 1s
• For NA > 0.2: add 1%.
• Within one year after calibration,
add 0.3 % for second year.
•Zeroing required
[3]
All states of polarization at constant wavelength (1550 nm ± 30 nm),
straight connector, T = 23°C ± 5°C.
For angled connector (8 û )
add 0.01 dB typ.
[4]
Conditions:
• Wavelength 1550 nm ± 30 nm,
fixed state of polarization
• Temperature 23°C ± 5°C
•Linewidth of source ≥100 MHz
• Angled connector 8°
[5]
Does not include noise;
zeroing required
[6]
Averaging time 1s, T = 23°C ± 5°C, ∆T ± 1°C, observation time 300 s.
Wavelength range 1200 nm to 1630nm
[7]
Conditions:
• Wavelengths 1550nm ± 30 nm
• Standard single mode fiber, angled connector min 8°
• With D-shape adapter 81001xx
Return Loss > 60 dB typical
[8]
For input power > + 10 mW add:
add typ. ± 0.0016 dB/mW
In case of negative power change > 50 dB allow additional recovery time of 3 min
[9]
Max 30°C for > + 20 dBm input power
Operating temperature
0°C to 40°C 0°C to +35°C
[9]
Humidity
Non-condensing Non-condensing
Warm-up time
40 min 40 min