197
Performance Tests
V. Polarization Dependent Loss (PDL): Optional
b. Linear Vertical polarized light.
•
Set the
λ
/4 and
λ
/2 Retarder Plates to the "corrected
wavelength dependent positions" for Linear Vertical
polarized light.
You need to select the
λ
/4 and
λ
/2 Retarder plates by
pressing
λ
/4 and
λ
/2 respectively.
Type the appropriate value and press E
NTER
after each
entry.
•
Read the power that is displayed on the power meter and
note it as P
02
in the test record.
c. Linear Diagonal polarized light.
•
Set the
λ
/4 and
λ
/2 Retarder Plates to the "corrected
wavelength dependent positions" for Linear Diagonal
polarized light.
You need to select the
λ
/4 and
λ
/2 Retarder plates by
pressing
λ
/4 and
λ
/2 respectively.
Type the appropriate value and press E
NTER
after each
entry.
•
Read the power that is displayed on the power meter and
note it as P
03
in the test record.
d. Right Hand Circular polarized light.
•
Set the
λ
/4 and
λ
/2 Retarder Plates to the "corrected
wavelength dependent positions" for Right Hand
Circular polarized light.
You need to select the
λ
/4 and
λ
/2 Retarder plates by
pressing
λ
/4 and
λ
/2 respectively.
Type the appropriate value and press E
NTER
after each
entry.
•
Read the power that is displayed on the power meter and
note it as P
04
in the test record.
11. Connect the equipment as shown in Figure D-14.
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