8163A/B, 8164A/B, 8166A/B User’s Guide
181
Return Loss Measurement
7
Return Loss Modules
The applicability of the available Return Loss modules is outlined below:
81610A Return Loss module
The 81610A Return Loss Module includes a power sensor, monitor diode
and two couplers in one module. It is for use in the 8163A/B Lightwave
Multimeter, the 8164A/B Lightwave Measurement System, and the
8166A/B Lightwave Multichannel System for making return loss
measurements.
The Keysight 81610A Return Loss module does not include an internal
source, and must be used in conjunction with a suitable external source.
Figure 99
The Contents of the 81610A Return Loss module
81611A and 81612A Return Loss modules
81611A and 81612A Return Loss modules include a power sensor, monitor
diode, two couplers, and an internal laser source in one module. It is for
use in the 8163A/B Lightwave Multimeter, the 8164A/B Lightwave
Measurement System, and the 8166A/B Lightwave Multichannel System
for making return loss measurements.
Figure 100
The Contents of the 81611A and 81612A Return Loss modules
M
dut
P
dut
External Laser
Source
Output 9/125 mm
physical contact
M
dut
P
dut
External Laser
Source
Output 9/125 mm
Internal Laser
Source
physical contact
Summary of Contents for 8163A
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