Atec Agilent-8156A - Manual (Page 5)

Page 5 of 8
Variable Optical Attenuator Modules with Power Control (Single Mode Fibers)
81576A 81577A
Connectivity straight connector, versatile interface angled connector, versatile interface
Fiber type 9/125
µm SMF
Wavelength range 1250 nm – 1650 nm
Attenuation range 0 – 60 dB
Resolution 0.001 dB
Attenuation Setting Power Setting Attenuation Setting Power Setting
Repeatability ± 0.010 dB ± 0.015 dB [2] ± 0.010 dB ± 0.015 dB [2]
Accuracy (uncertainty) [1], [3], [4], [5] ± 0.1 dB ± 0.1 dB
Settling time [6] typ. 100 ms typ. 300 ms typ. 100 ms typ. 300 ms
Transition speed typ. 0.1 – 12 dB/s
Relative power meter uncertainty [7], [8] ± 0.03 dB ± 200 pW
Attenuation flatness [1], [5], [9], [10] ± 0.07 dB; typ. ± 0.05 dB (1520 nm < λ < 1620 nm)
typ.
± 0.10 dB (1450 nm < λ < 1640 nm)
Spectral ripple [11] typ.
± 0.003 dB
Insertion loss [3], [5], [12], [13] typ. 0.9 dB (excluding connectors)
1.8 dB; typ. 1.2 dB (including connectors) [14]
Insertion loss flatness [1], [14] typ. ± 0.1 dB (1420 nm < λ < 1615 nm) [5]
Polarization dependent loss [3], [12], [14] 0.10 dBpp; typ. 0.05 dBpp
Return loss [12], [14] typ. 45 dB typ. 57 dB
Maximum input power [15] + 33 dBm
Shutter isolation typ. 100 dB
Dimensions (H x W x D) 75 mm x 64 mm x 335 mm (2.8” x 2.6” x 13.2”)
Weight 1.3 kg
Recommended recalibration period 2 years
Operating temperature 10°C – 45°C
Humidity Non-condensing
Warm-up time
30 minutes
[1] At constant operating temperature
[2] Output power > -40 dBm, input power < +27 dBm. For input power > +27 dBm add typ.
± 0.01 dB
[3] Temperature within 23°C ± 5°C
[4] Input Power < +30 dBm;
λ = 1550 nm ± 15 nm; typ. for 1250 nm < λ < 1650 nm
[5] For unpolarized light
[6] Step size < 1 dB; for full range: typ. 6 seconds
[7] Wavelength and SOP constant; temperature constant and between 23°C ± 5°C; λ < 1630 nm; 1s averaging time
[8] Output power >-45dBm,
input power ≤ 27dBm, for input power > + 27dBm add typ. ± 0.02dB
[9] Relative to reference at 0 dB attenuation
[10] λ
disp
set to 1550 nm; attenuation
≤ 20 dB;
for attenuation > 20 dB:
add typ. 0.01 dB (
α [dB] – 20) for 1520 nm < λ < 1620 nm
add typ. 0.02 dB (
α [dB] – 20) for 1450 nm < λ < 1640 nm
[11] Linewidth of source ≥ 100 MHz
[12] For λ = 1550 nm ± 15 nm
[13] Add typ. 0.1 dB for
λ = 1310 nm ± 15 nm
[14] Measured with Agilent reference connectors
[15] Agilent Technologies Deutschland GmbH assumes no responsibility for damages caused by scratched or poorly cleaned connectors.