Simultaneous measurement system for Stokes parameters of linear polarized light

A measurement system for Stokes parameters of linear polarized light based on orthogonal grating was presented. Four diffractive beams of (±1,±1) orders were incident on one of the analyzer in the analyzer array respectively. The analyzer array is composed of four analyzers with different polarization directions. The intensities of light through the analyzer array were detected by a CCD simultaneously. The simultaneous phase shifting is realized by an orthogonal grating, analyzer array and CCD detector. Linear Stokes parameters of incident light were obtained by calculation of detected light intensities. The experimental results indicated that the designed method was feasible and simple. In addition, the measured resuh is free of the intensity fluctuation of incident light.