Atec Agilent-8156A - Manual (Page 6)

Page 6 of 8
Variable Optical Attenuator Modules (Multimode Fibers)
The specifications below are valid for constant operating and signal launch conditions.
81578A #050 81578A #062
Connectivity straight connector versatile interface straight connector versatile interface
Fiber type 50/125 µm MMF 62.5/125 µm MMF
Wavelength range 700 nm – 1400 nm
Attenuation range 0 – 60 dB
Resolution 0.001 dB
Repeatability [1] [2] [5] ± 0.015 dB
Accuracy (uncertainty) [1] [2] [3] [4] [5] typ.
± 0.15 dB (800 nm – 1350 nm)
± 0.2 dB (at 850 nm ± 15 nm, 1310nm ± 15 nm)
Settling time [6] typ. 100 ms
Transition speed typ. 0.1 – 12 dB/s
Insertion loss [1] [2] [4] [5] typ. 1.0 dB (NA = 0.1)
typ. 1.3 dB (NA = 0.2)
2.0 dB (NA = 0.2)
typ. 1.0 dB (NA = 0.1)
typ. 1.3 dB (NA = 0.2)
2.0 dB (NA = 0.2)
typ. 3.0 dB (NA = 0.27)
Return loss [2] [5] [7] typ. 27 dB
Maximum input power [8] +27 dBm
Shutter isolation typ. 100 dB
Dimensions (H x W x D) 75 mm x 32 mm x 335 mm (2.8” x 1.3” x 13.2”)
Weight 0.9 kg
Recommended recalibration period 2 years
Operating temperature 10°C – 45°C
Humidity Non-condensing
Warm-up time
30 minutes
[1] At constant operating conditions
[2] Effective spectral bandwidth of source > 5 nm
[3] For mode launch conditions with NA = 0.2; for every
∆NA = 0.01 add typ. ± 0.01 dB
[4] Temperature within 23°C ± 5°C and unpolarized light
[5] At 850nm
± 15nm, 1310nm ± 15nm
[6] Step size < 1 dB, for full range: typ. 6 seconds
[7] The return loss is mainly limited by the return loss of the front panel connectors
[8] Agilent Technologies Deutschland GmbH assumes no responsibility for damages caused by scratched or poorly cleaned connectors.