User`s guide

Specifications Optical Head Specifications
34 Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition
Reference conditions:
[1]
Power level 10 µW (-20 dBm), continuous wave (CW)
•Averaging time 1s
• Parallel beam, 3 mm,
center of sphere input
• Ambient temperature 23 °C ± 5 °C
• On day of calibration (add ± 0.3 % for aging 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 ± 0.4 nm
• Humidity 50 % ± 10 %
[2]
Operating Conditions:
• Parallel beam, ∅ 3mm , center of sphere input, or connectorized fiber with NA ≤0.2 (straight connector)
• For NA > 0.2: add 1%
• Within one year after calibration, add
± 0.3% for second year
• Operating temperature range as specified, humidity <80% and non-condensing
•Zeroing required
[3]
All states of polarization at constant wavelength (1550 nm ± 30 nm) and constant power
[4]
Conditions:
• Wavelength 1550 nm ± 30 nm, fixed state of polarization, constant power
• Temperature 23°C ± 5°C
Measurement time ≤ 3 min
[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 970 nm to 1630 nm
Thermal drift at 38 dBm,
exposure time 30 min:
Recovery time 10 min: ≤ 30nW
30 min: ≤ 10nW
[7]
For optical power > 30 dBm the maximal operating temperature is limited to 35°C
[8]
Wavelength must not be equal to any water absorption line
Safety Note:
For optical power higher than 34 dBm the attached heat sink MUST be used!
For continuous optical power or average optical power higher than 38 dBm the connector
adapters will get warmer than permitted according to the safety standard IEC 61010-1.
The 81628B Optical Head can handle optical power up to 40 dBm, however, operation
above 38 dBm is at the operators own risk.
Agilent Technologies Deutschland GmbH will not be liable for any damages caused by an
operation above 38 dBm.
Dimensions 55mm x 80 mm x 250 mm
Weight 0.9 kg (without heat sink)
Recommended Recalibra-
tion period
2 years
Operating temperature
[7]
0°C to +40°C
Humidity Non-condensing
Warm-up time 40 min