www.agilent.com/comms/lightwave
Response Modules
Agilent 8163xA/B and 8162xB Optical Power Meter (cont.)
Agilent 81635A Agilent 81634B Agilent 81630B
Sensor Element InGaAs (dual) InGaAs InGaAs
Wavelength Range 800 nm to 1650 nm 800 nm to 1700 nm 970 nm to 1650 nm
Power Range –80 dBm to +10 dBm –110 dBm to +10 dBm –70 dBm to +28 dBm
Applicable Fiber Type Standard SM and MM up to 62.5 µm Standard SM and MM up to 100 µm Standard SM and MM up to 100 µm
core size, NA ≤0.24 core size, NA ≤0.3 core size, NA ≤0.3
Uncertainty (accuracy) typ. <±3.5 % (800 nm to 1200 nm) ±2.5 % ±3.0 % for 1255 nm to 1630 nm at 980 nm
at Reference Conditions ±3 % (1200 nm to 1630 nm) (1000 nm to 1630 nm) ±3.5 % (add ±0.5% per nm if 980 nm is not
the center wavelength) at 1060 nm ±4.0 %
(add ±0.6% per nm if 1060 nm is not the
center wavelength)
Total Uncertainty typ. ±5.5% ± 200 pW (800 nm ±4.5% ± 0.5 pW ±5 % ± 1.2 nW (1255 nm to 1630 nm)
to 1200 nm) ±5% ± 20 pW (1000 nm to 1630 nm) at 980 nm ±5.5 % ± 1.2 nW (add ±0.5% per
(1200 nm to 1630 nm) nm if 980 nm is not the center wavelength) at
1060 nm ±6.0 % ± 1.2 nW (add ±0.6 % per
nm if 1060 nm is not the center wavelength)
Relative Uncertainty
– due to polarization typ. <±0.015 dB <±0.005 dB <±0.01 dB
– spectral ripple (due to interference) typ. <±0.015 dB <±0.005 dB <±0.005 dB
Linearity (power) CW –60 dBm to +10 dBm CW –90 dBm to +10 dBm CW –50 dBm to +28 dBm (970 nm – 1630 nm)
– at 23°C ± 5°C typ. <±0.02 dB (800 nm to 1200 nm) <±0.015 dB (1000 nm to 1630 nm) ≤ ±0.05 dB
<±0.02 dB (1200 nm to 1630 nm)
– at operating temp. range typ. <±0.06 dB (800 nm to 1200 nm) <±0.05 dB (1000 nm to 1630 nm) ≤ ±0.15 dB
<±0.06 dB (1200 nm to 1630 nm)
Return Loss >40 dB >55 dB >55 dB
Noise (peak to peak) typ. <200 pW (800 nm to 1200 nm) <0.2 pW (1200 nm to 1630 nm) <1.2 nW (1255 nm – 1630 nm)
<20 pW (1200 nm to 1630 nm)
Averaging Time (minimal) 100 µs 100 µs 100 µs
Analog Output None included included
Dimensions (H x W x D) 75 mm x 32 mm x 335 mm 75 mm x 32 mm x 335 mm 75 mm x 32 mm x 335 mm
(2.8” x 1.3” x 13.2”) (2.8”x 1.3”x 13.2”) (2.8”x 1.3”x 13.2”)
Weight 0.5 kg 0.5 kg 0.6 kg
Recommended Recalibration Period 2 years 2 years 2 years
Operating Temperature +10°C to +40°C 0°C to +45°C 0°C to +35°C
Humidity Non-condensing Non-condensing Non-condensing
Warm-up Time 20 min 20 min 20 min
Agilent 81636B
Sensor Element InGaAs
Wavelength Range 1250 nm to 1640 nm
Power Range –80 dBm to +10 dBm
Applicable Fiber Type Standard SM and MM up to 62.5 µm core size, NA ≤0.24
Uncertainty (accuracy) at Reference Conditions ±3 % (1260 nm to 1630 nm)
Total Uncertainty ±5% ± 20 pW (1260 nm to 1630 nm)
Relative Uncertainty
– due to polarization typ. ±0.015 dB
– spectral ripple (due to interference) typ. ±0.015 dB
Linearity (power) CW –60 to +10 dBm, (1260 nm to 1630 nm)
– at 23°C ± 5°C <±0.02 dB
– at operating temperature range <±0.06 dB
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