Research of the phase-shifting system on the liquid crystal spatial light modulator

The system of computer-generated holographic phase-shifter with liquid crystal spatial light modulator is based on computer-generated hologram principle and displacement theorem of Fourier transform.LCD is utilized as optical display component,and specific phase shift is achieved by changing encodes of the computer-generated hologram displayed on the LCD.According to the experiment measurement,we know that the phase shift system based on LC-SLM is very exact and has high stability and good repeatability in the in-line system of the digital phase-shift holography.