Sweeping Through All States Of Polarization - Agilent Technologies HP E5574A User Manual

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Using the OLA as a Laser Source and Polarization Controller
Using the OLA as a Polarization Controller

Sweeping Through all States of Polarization

When you start one of the applications
• Pol. Depend. Loss,
• PD Coupler Test, or
• PDL / Insert. Loss,
the built-in polarization controller begins to sweep automatically.
The light emerging from the optical output will pass through all
states of polarization.
How to Manually Activate the Automatic Sweep
To start the automatic sweep of the polarization controller
manually, do one of the following:
• If you are using the "Return Loss" application, press
and P O . The automatic sweep will start as soon as you
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return to the measurement screen.
• If you are using the "Powermeter" application, press
• If you have not started any application, press I
"Pol. Controller".
In the latter cases, you will see the "Pol. Controller" screen. You
can activate the automatic sweep by pressing
Note: If you have called the "Pol. Controller" screen from the
"Powermeter" application, the measured values are still displayed.
After activating the automatic sweep you can measure the power
variation due to the continuously changing polarization.
85
S
ETTINGS
P .
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and choose
NSTR
P O .
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