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Taking Polarization Dependent Measurements
Measuring Polarization Dependent Loss
2.1
Measuring Polarization Dependent Loss
This section covers the use of the applications “Pol. Depend. Loss”
and “PDL / Insert. Loss”. You can measure how the optical loss of
passive components is affected by different states of polarization.
PDL Measurement Setup
The same setup can be
used to measure the
Insertion Loss.
1
Connect the optical output to the input of the device under test
(DUT).
2
Connect the optical head to the output of the DUT.
Figure 2-1
Setup for PDL Measurements
Head Input A
Head Input B
Optical Input
Optical Output
Head Input A
Head Input B
Optical Input
Optical Output
3 dB
Coupler
Pol. Ctrl.
Internal
Source(s)
Signal Processing and Display
Device
under
Test
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