SS-OCT System Base Unit
Chapter 4: System Operation
Rev A, December 17, 2018
Page 29
4.2.3. Adjusting the Polarization
If necessary, polarization in the reference path can be modified with the reference polarization controllers in the
“Device Settings” tab as indicated in Figure 36.
Figure 36
Polarization Adjustment in the Reference Path
In order to adjust polarization in the reference path, there are two motorized controllers available, one acting as
a QWP and the other as a HWP. By moving the sliders, the respective single and double fiber loops are rotated,
thus changing the state of polarization. The principle of operation is identical to a paddle polarization controller
offered by Thorlabs, as shown in Figure 37.
Figure 37
Padddle Polarization Controller by Thorlabs
