www.agilent.com/comms/lightwave
Response Modules
Agilent 81610A and 81613A Return Loss Module
81610A 81613A
Source external input only Fabry-Perot Laser (internal)
Output Power — typ. –4 dBm
Center Wavelength — 1310 nm/1550 nm ±20 nm typ.
Sensor Element InGaAs InGaAs
Fiber Type Standard single-mode 9/125 µm Standard single-mode 9/125 µm
External Input max input power: 10 dBm —
min input power: 0 dBm —
damage input power: 16 dBm —
Wavelength Range for External Input 1250 nm to 1640 nm —
Dynamic Range 70 dB 75 dB
Relative Uncertainty of Return Loss (RL) with broadband source with Agilent FP sources User calibration Plug&play
RL ≤55 dB <±0.25 dB typ. <±0.5 dB <±0.5 dB (typ. <±0.3 dB) typ. <±0.6 dB
RL ≤60 dB <±0.3 dB typ. <±1.0 dB <±0.6 dB (typ. <±0.4 dB) typ. <±1.5 dB
RL ≤65 dB <±0.65 dB typ. <±2.0 dB <±0.8 dB (typ. <±0.5 dB) —
RL ≤70 dB <±1.7 dB — <±1.9 dB (typ. <±0.8 dB) —
RL ≤75 dB — — typ. <±2.0 dB —
Total Uncertainty add ±0.2 dB add typ. ±0.2 dB add ±0.2 dB add typ. ±0.2 dB
Dimensions (H x W x D) 75 mm x 32 mm x 335 mm (2.8” x 1.3” x 13.2”) 75 mm x 32 mm x 335 mm (2.8” x 1.3” x 13.2”)
Weight 0.6 kg 0.6 kg
Recommended Recalibration Period 2 years 2 years
Operating Temperature 10 to 40°C 10 to 40°C
Humidity Non-condensing Non-condensing
Warm-up Time 20 minutes 20 minutes
•
Single module for return loss (RL) test
•
High dynamic range of 75 dB
•
Built-in Fabry-Perot laser source for 1310 nm and 1550 nm
•
Use any external laser source, including tunable laser
for swept RL applications
•
Three easy calibration steps for enhanced accuracy
Plug&Play for RL Measurement
Portability and cost effective; a single mainframe, single module and
single connection to the device under test are all you need to make a
return loss (RL) measurement. Agilent’s RL test solution solves the
complex operation of calibration and is able to exclude measurement
uncertainties due to coupler / filter usage in your design. In addition, a
built-in FP laser at 1310 nm and 1550 nm enables basic component tests.
Meeting Manufacturing Needs
The need for IL and RL for optical component tests is fulfilled with the
RL module when used with an optical power meter - preferably an
optical head due to its flexibility. On-board application software supports
step-by-step operation with instructions.
Return Loss Module, Optical Assembly
Swept RL Measurement with Tunable Laser Source
Today’s passive component devices are not only characterized at a single
wavelength, but over a wide wavelength range using a tunable laser
source. The swept wavelength measurement concept is applicable for RL
measurements using an Agilent tunable laser source (TLS) in synchronous
operation of the two modules.
23
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