Getting Started With Return Loss Return Loss Measurement
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition 169
Agilent 81613A
Return Loss modules
Agilent 81613A Return Loss modules include a power sensor, monitor
diode, three couplers, and two internal laser source in one module. They
are for use in the Agilent 8163B Lightwave Multimeter, the
Agilent 8164A/B Lightwave Measurement System, and the
Agilent 8166A/B Lightwave Multichannel System for making return loss
measurements.
Figure 87 The Contents of the Agilent 81613A Return Loss modules
All Agilent 8161x series Return Loss modules include an input for an
external laser source.
M
dut
P
dut
External Laser
Source
Output 9/125 µm
Internal Laser
Sources
physical contact