Test 4. Optical Input Return Loss - Agilent Technologies Agilent 86120B User Manual

Description
• Agilent 8153A Lightwave Multimeter
• Agilent 81553SM 1550 nm Fabry-Perot laser, SM 9/125 µm Source Module
• Agilent 81534A Return Loss Model
Procedure:
1 Turn the source module's output off.
2 Connect a single-mode patchcord between the source module's optical output
3 Set the return-loss module's wavelength to 1550 nm, and select an average time
4 Locate an HMS-10/HRL to FC/PC patchcord. Connect the HMS-10/HRL end of
5 Zero the return-loss module.
6 Turn on the source module.
7 Remove the termination from the cable, and leave the cable's free end
8 The return-loss module measures the reflection reference (14.6 dB return loss
9 Make a low-reflection termination in the HMS-10/HRL to FC/PC patchcord. Do
10 The return-loss module measures the termination parameter.
11 Connect the HMS-10/HRL to FC/PC patchcord to the Agilent 86120B's front
12 The lightwave multimeter measures the return loss. Compare this
Performance Tests

Test 4. Optical Input Return Loss

Test 4. Optical Input Return Loss
Input return loss is verified using the following devices:
Standard instruments (flat contacting connectors)
and the return-loss module's INPUT SOURCE connector.
of 1 second.
the patchcord to the return-loss module's OUTPUT connector. Terminate the
other end of the cable.
uncovered.
of the patchcord's FC/PC connector in air).
this by wrapping the cable 6 times around a 5 mm diameter mandrel.
panel OPTICAL INPUT connector.
measurement with the specification listed in
Regulatory Information".
6-6
Chapter 7, "Specifications and