Measurement of phase difference caused by plane mirror for laser launched and received in common aperture

It is necessary to measure the phase difference between s wave and p wave caused by the telescope for the dynamic phase compensation of the polarizing beam splitting system of laser launched and received in common aperture. A physical model is built up by using the Mueller matrix and the Stokes vector. Based on the model, the relationship between the phase difference and the measured laser power is obtained. An experimental method is presented to calculate the phase difference of plane mirror through the measured laser power, and the way to determine the only correct value between 0～2p is figured out. The phase difference of two mirrors is measured, and the results have been applied to the polarizing beam splitting experiment with dynamic phase compensation which verifies the correctness