Mingliang Shi^*, Ruofu Yang, Chunping Yang, Mingwu Ao, Hongzhou Dong
School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu, China.
DOI: 10.4236/jamp.2014.212127   PDF    HTML     3,468 Downloads   4,266 Views   Citations

Abstract

The technology for phase detection of liquid crystal optical device is a difficult research in current domestic and overseas. However, for the existing liquid crystal optical device, aiming at the poor anti-vibration capability and poor versatile of phase detection, the complexity of phase retrieval algorithm, we propose a new phase measurement principle and experimental methods of liquid crystal optical device. It is a phase measurement method based on the combination of phase- shifting interferometer and phase conjugation technology. The deflection characteristics of the liquid crystal device means the device can implement phase modulation to only one direction of polarized light while is completely transparent to orthogonal polarized light. We put forward the phase shift of the orthogonal polarization phase shift interferometer method, using phase shifting interference as well as the combination of phase conjugate means to achieve its phase measurement. So we can retrieves devices modulation phase simply and efficiently combines with phase- shifting interferometer technology.

Keywords

Liquid Crystal Optical Device, Modulation Phase Detection, Orthogonal Phase Shifting, Conjugate Interference, Phase Retrieval Algorithm

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Conflicts of Interest

The authors declare no conflicts of interest.

References

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