Getting Started With Return Loss Return Loss Measurement
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
141
Measuring the Power Transmitted Through the
Reference Cable
To measure insertion loss and the front panel delta, you must measure the power
transmitted through the reference cable.
6 Connect the reference cable to a Power Sensor as shown in Figure 94.
7 Move to the Power Sensor channel and press [Menu].
8 Move to <Pwr unit>, move to <dB> and press Enter.
9 Move to <Display to reference> and press Enter. This sets the power
transmitted through the reference cable, E
Meas
, as the reference value, [Ref].
10 Press [Close] to exit from the menu.
Measuring the Termination Parameter using a
Reference Cable
11 Terminate the cable so that there are no reflections coming from the end. You
can do this by wrapping the fiber five times around the shaft of a screwdriver
(or some similar object with a diameter of around 5mm).
12 Press [Menu]. Move to <Terminated Calibration> and press Enter. The
instrument measures the power reflected by the component. The instrument
measures and sets the termination parameter.
Figure 94 Measuring the Power Transmitted through the Reference Cable
81534A
Laser
Source
8163A Lightwave Multimeter
Agilent 81101AC
Agilent 81109AC
Power
Sensor
8163A Lightwave Multimeter
Reference Cable
Figure 95 Measuring the Termination Parameter
81534A
Laser
Source
8163A Lightwave Multimeter
Agilent 81101AC
Agilent 81109AC
Termination
Reference Cable
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