46
Taking Polarization Dependent Measurements
Measuring the Polarization Dependent Characteristics of
Couplers
2.2
Measuring the Polarization Dependent
Characteristics of Couplers
This section covers the use of the application “PD Coupler Test”.
You can measure how the Coupling Ratio, the Splitting Ratio and
other parameters change with polarization.
PD Coupler Test Measurement Setup
Two optical heads are required to measure the properties of optical
couplers.
Figure 2-4
Setup for PD Coupler Test
Coupler
under
Test
Head Input A
Head Input B
Optical Input
Optical Output
Head Input A
Head A
Head B
Head Input B
Optical Input
Optical Output
3 dB
Coupler
Pol. Ctrl.
Internal
Source(s)
Signal Processing and Display
In
Out
1
2
1
2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
