|ReduPolarizer (ReduOptSignal *oReduOptSignalTmp)|
|void||SetPolarization (double S1PolarizerTmp, double S2PolarizerTmp, double S3PolarizerTmp)|
|Sets a new polarization splitting vector in Stokes space. |
|Polarizes the reduced optical signal. |
Adapted by John Zweck (Jan 2006) from code written by Ivan Lima See doumentation for ReduPolarizer::PolarizeOptSignal() for details.
Polarizes the reduced optical signal.
We derive an approximate formula in Stokes space for the action of a polarizer on a reduced signal, based on the theory documented in Polarizer::PolarizeOptSignal(). The approximation relies on the assumption that the time integral of product of u(t) and v(t) is zero, whenever u,v are a pair of OptSignals that respresent the signal in two different channels, noise in two different channels, or signal and noise in a channel (or two different channels). This assumption underlies the entire Wang_Menyuk reduced model (see for example eqs (6) and (15) of the paper JLT19p487.
The formula is derived from Polarizer::PolarizeOptSignal() using Gordon and Kogelnick Eq 3.11.
For the signal and noise in each channel, we separately set
S_out = 0.5InnerProduct(SPolarizer,S_in)SPolarizer
where all Stokes parameters in the above formula are 4x1 vectors and SPolarizer = (1,UnitThreeVector).
Referenced by Polarizer::PolarizeOptSignal().