Figure 10 shows the POS-002 output polarization vs. time in response to a discontinuous
change in input polarization, using the default step size setting.
If a smaller step size is chosen, the resulting output polarization will be smoother, but
more steps are needed to compensate for a given amount of input polarization change.
Figure 8 shows the POS-002 output polarization vs. time in response to a discontinuous
change in input polarization, using a step size setting smaller than the default value.
Figure 8 POS-002 output, reduced step size
Figure 9 POS-002 output, step size = default
Choosing a larger step size will reduce the response time, but can also increase noise.
Figure 10 shows the response of the POS-002 to the same discontinuous change in the
input polarization state as in Figure 7, but with a low threshold setting and a step size
setting larger than the default value. Compared to Figure 7, the total recovery time is
smaller, but the output polarization fluctuation (labeled C in Figure 7) increases.
Figure 10 POS-002 response to discontinuous change in input polarization state
(step size larger than default setting)
Document #: GP-UM-POS-002-21
Page 18 of 30
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