User`s guide

Optical Head Specifications Specifications
Agilent 81618A/9A and Agilent 81623B/4B/6B/8B Optical Heads, Fourth Edition
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Table 4 Agilent 81628B Specification
Agilent 81628B
with integrating sphere
Sensor element InGaAs
Wavelength range 800 nm to 1700 nm
Power range –
60 dBm to +40 dBm (800 nm to 1700 nm)
For operation higher than 34 dBm
see safety note
Damage Power 40.5 dBm
Applicable fiber type
Open beam
Single mode NA ≤ 0.2, Multimode NA ≤ 0.4
∅ ≤ 3mm center of sphere
Uncertainty at reference
conditions
[1] [8]
± 3.0 % (970 nm to 1630nm)
Total uncertainty
[2] [8]
≤ 10 dBm
>10 dBm to ≤20 dBm
>20 dBm to ≤38 dBm
(970 nm to 1630nm)
± 4.0% ± 5 nW
± 4.5%
± 5%
Relative uncertainty:
- due to polarization
[3]
- due to speckle noise at
source linewidth:
[4]
0.1pm to 100pm >100pm
typ. ≤ ± 0.006 dB
typ. ≤ ± 0.02 dB
typ. ≤ ± 0.002 dB
Linearity (power):
[5] [8]
≤ 10 dBm
>10 dBm to ≤20 dBm
>20 dBm to ≤37 dBm
>37 dBm to ≤38 dBm
(CW –40 dBm to + 38 dBm), (970 nm to 1630 nm)
≤ ± 0.03 dB
≤ ± 0.06 dB
≤ ± 0.09 dB
≤ ± 0.10 dB
at 23°C ± 5°C,
for operating temperature range add ±0.03 dB
Return loss
typ. > 75 dB
Noise (peak to peak)
[6]
< 5 nW
Averaging time (minimal) 100 µs
Analog Output Included