Agilent 81495A Reference Receiver

Agilent
81495A Reference Receiver
Data Sheet
81495A Reference Receiver
Benefits
Agilent’s 81495A Reference Receiver is an O/E converter optimized for transceiver loop-back test according to IEEE 802.3ae,
-LR, -LRM, -ER, -SR and FCx1, FCx2, FCx4, FCx8 and FCx10.
• Single-mode and multimode O/E in one device provides best
cost efficiency.
Offering a multimode fiber input, single-mode and multimode signals can be detected. Therefore the module covers the functionality of two modules in one, without extra cost.
• Low noise and low jitter to support reliable O/E conversion for
optical stress test.
• Clean eye for best loop-back performance in transceiver test.
• Compliance to IEEE 802.3ae -LR, -LRM, -ER, -SR and up to
10 GFC in combination with the N4917A Optical Receiver
Stress Test solution.
The module is fully integrated into the industry standard Agilent
Lightwave Measurement System LMS ( 816x A/B ) platform.
• Quick signal level verification and diagnosis with integrated
average optical power meter.
Together with the huge range of modules for the LMS, any optical
test application can be build within minutes. Remote control can
be used to monitor the average optical power of the analyzed
signal.
• Linear conversion with internal amplifier extends the application as frontend O/E converter.
• Seamless integration in the industry standard Agilent LMS
platform extends your optical workbench capabilities.
For the transceiver loop-back test the return signal of the transceiver is fed back to the BERT (Bit Error Ratio Tester). As the
transceiver output is optical, the signal must first be converted to
the electrical domain with the 81495A Reference Receiver.
Applications
The performance of this conversion has significant influence on
the results of the loop-back test. The 81495A reference receiver
works perfectly with the N4917A Optical Receiver Stress Test
solution.
• Loop-back test for compliance with IEEE 802.3ae optical
transmitter stress test.
• Qualitative analysis of modulated signals with an electrical
spectrum analyzer or oscilloscope
As additional feature the reference receiver provides an integrated
optical average power meter. The capability of verifying the average optical power of the connected signal with the same receiver
as the RF signal offers a fast and simple way to control the average signal power of the tested signal.
• Any scientific optical measurement setup that requires O/E
conversion up to 9 GHz.
81495A
O/E - Receiver
Amplifier
RF Out
optical average
power meter
Opt. In
2
Specifications
Data Input (Optical in)
Operational data rate
622 Mb/s to 12.5 Gb/s
Fiber type
Standard multi-mode 62.5 µm/125 µm
Wavelength range
750 nm to 1650 nm
Maximum safe input power
2 mW
Maximum linear input power [f1]
–3 dBm
Noise equivalent power (rms)
λ = 850 nm
λ = 1310 nm
< 3.0 µW (typical)
< 1.5 µW (typical)
Optical-to-electrical
conversion ratio [f2]
λ = 850 nm
λ = 1310 nm
λ = 1550 nm
> 250 V/W (typical)
> 400 V/W (typical)
> 350 V/W (typical)
Return loss
λ = 850 nm MM
λ = 1310 nm SM
> 14 dB (typical)
> 27 dB (typical)
Data Output (RF out)
Output impedance (nominal)
50 Ω
Opto-electrical modulation bandwidth [f3]
DC to 9.3 GHz (typical)
Rise and fall times ( 20% to 80%)
< 35 ps
Jitter
< 20 ps
[f4]
Optical average power meter (specifications valid at 850 nm, 1310 nm, 1550 nm)
Power range
Total uncertainty (–25 dBm to +2 dBm)
–40 dBm to +5 dBm
< ±0.5 dB (typical)
[f5]
< ±0.05 dB (typical)
Linearity (–25 dBm to +2 dBm) [f5]
Noise ( 2σ )
[f6]
λ = 850 nm
λ = 1310 nm, 1550 nm
Averaging time (selectable)
< 35 nW
< 20 nW
100 µs to 10 s
[f1] Compression < 1 dB [f2] OMA ≤ 0.5 mW and average power ≤ 0.3 mW
[f3] –3 dB decreases relative to 100 MHz
[f4] Jitter of input signal < 10 ps
[f5] NA ≤ 0.24; within 5 min after zeroing, at constant temperature ±1 °K,
For 850 nm and 1550 nm: up to 0 dBm
For 1550 nm: add 0.05 dB above –3 dBm
[f6] 300 samples, averaging time 1 s, constant temperature ±1K
General specifications
Optical connector interface
Operating temperature
Agilent universal adapter straight ferrule
+5 °C to +40 °C
RF connector interface
Storage Temperature
2.4 mm female
- 40 °C to +70 °C
Module size (H x W x D)
Humidity
75 mm x 32 mm x 335 mm (2.8” x 2.3” x 13.2”)
15% to 95% relative humidity, non-condensing
Module weight
816xA/B Firmware revision
0.5 kg (1.1 lbs)
5.01 and higher
Warmup time
Recommended recalibration time
20 min
3 years
3
Ordering Information
81495A-085 Reference Receiver
Calibration and Warranty
R 1280
Return-to-Agilent
warranty and service plan
R-51B-001 - 3A
3 month return-to-Agilent
warranty extended to 3 years
R-50C-011 - 3
Agilent Calibration Up front
Support Plan 3 year coverage
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Revised: October 1, 2009
Product specifications and descriptions in
this document subject to change without
notice.
© Agilent Technologies, Inc. 2008 - 2010
Printed in USA, May 17, 2010
5989-7526EN
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