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Appendix C. Specifications
Technical Data, Product Specifications and Characteristics
Absolute Power Measurement Specifications
Optical Head
81521B #001
81521B
81524A
81525A
Sensor element
Ge, 5 mm
InGaAs, 5 mm
Wavelength range
900 – 1700 nm
800 – 1650 nm
Power range
+3 to –80 dBm
[5]
+3 to –64 dBm
[6]
+3 to –80 dBm
+3 to –90 dBm
+27 to –70 dBm
(1250 – 1650 nm)
+23 to –70 dBm
(800 – 1650 nm)
Display resolution
0.001 dBm
Applicable fiber type
parallel beam, 9/125 – 100/140
µ
m, NA
≤
0.3
Uncertainty (accuracy)
at reference cond.
[1]
±
2.2%
(1000 –1650 nm)
±
2.2%
(1000 - 1600 nm)
±
3.0%
(900 - 1600 nm)
Total uncertainty
[2]
±
4%
±
50 pW
[5]
±
4%
±
600 pW
[6]
(1000 – 1650 nm)
±
4%
±
50 pW
(1000 – 1650 nm)
±
4%
±
5 pW
(1000 – 1600 nm)
±
5%
±
500 pW
(900 – 1600 nm)
Linearity (power)
(0 to –60 dBm)
[5]
(0 to –44 dBm)
[6]
(0 to –60 dBm)
(+3 to –70 dBm)
(+10 to –50 dBm)
[3]
(18
°
C to 28
°
C,
T=const)
±
0.04 dB
±
50 pW
[5]
±
0.04 dB
±
600 pW
[6]
±
0.04 dB
±
50 pW
±
0.04 dB
±
5 pW
±
0.04 dB
±
500 pW
(op. temp. range,
T=const)
±
0.15 dB
±
50 pW
[5]
±
0.15 dB
±
600 pW
[6]
±
0.15 dB
±
50 pW
±
0.15 dB
±
5 pW
±
0.15 dB
±
500 pW
Noise (peak-peak)
averaging time 1 sec.
<50 pW
[5]
<600 pW
[6]
(1200 – 1600 nm)
<50 pW
(1200 – 1600 nm)
<5 pW
(1000 – 1600 nm)
<500 pW
(900 –1600 nm)
Polarization sensitivity
0.003 dBpp
[4]
–
–
–
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