196
Performance Tests
V. Polarization Dependent Loss (PDL): Optional
approximated:
The associated Test record will look like this by adding the
appropriate values to those of the Linear Horizontal polarized
light.
10. Measure the Reference Power
a. Linear Horizontal polarized light.
Keep the setting from the polarizer and the
λ/4 and λ/2 Retarder
Plates from steps 6. to 8.
• Read the power that is displayed on the power meter and
note it as P
01
in the test record.
Linear vertical Linear diagonal RH circular
λλ/4 Plate λ/2 Plate λ/4 Plate λ/2 Plate λ/4 Plate λ/2 Plate
1560nm 1.2° 45.6° 0.8° 22.9° 44° -16.5°
1552nm 0.7° 45.4° 0.5° 22.7° 44.4° -15.9°
1540nm 0° 45° 0° 22.5° 45° -15.1°
Polarization
Linear Linear Linear Right Hand
Horizontal Vertical Diagonal Circular
Polarizer Setting 15.4
° n/a n/a n/a
λ/4 Plate Setting 15.4° n/a n/a n/a
λ/2 Plate Setting 15.4° n/a n/a n/a
Corrected wavelength
dependent positions:
λ/4 Plate Setting n/a 16.1° 15.9° 59.8°
λ
/2 Plate Setting n/a 60.8° 38.1° -0.5°
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