Testbed for the characterization of MEM devices using a liquid crystal spatial light modulator

Christopher C Wilcox; Jonathan R. Andrews; Sergio R. Restaino; Scott W. Teare; Ty Martinez; Don M. Payne

doi:10.1117/12.703157

14 February 2007 Testbed for the characterization of MEM devices using a liquid crystal spatial light modulator

Christopher C Wilcox, Jonathan R. Andrews, Sergio R. Restaino, Scott W. Teare, Ty Martinez, Don M. Payne

Proceedings Volume 6467, MEMS Adaptive Optics; 64670B (2007) https://doi.org/10.1117/12.703157
Event: MOEMS-MEMS 2007 Micro and Nanofabrication, 2007, San Jose, California, United States

Abstract

Many devices are now being used in Adaptive Optics Systems for compensating atmospheric distortions. We have developed a testbed that simulates atmospheric aberrations using a Liquid Crystal Spatial Light Modulator and the speed in which they vary may be controlled. This system allows the simulation of seeing conditions ranging from very poor to very good and these aberrations to be compensated by a second device. This second device may be a deformable mirror in conjunction with an Adaptive Optics System. Using these two devices simultaneously provides a well-defined quantitative characterization of the system and residual wavefront error using Point Spread Function and interferometric techniques.

Citation Download Citation

Christopher C Wilcox, Jonathan R. Andrews, Sergio R. Restaino, Scott W. Teare, Ty Martinez, and Don M. Payne "Testbed for the characterization of MEM devices using a liquid crystal spatial light modulator", Proc. SPIE 6467, MEMS Adaptive Optics, 64670B (14 February 2007); https://doi.org/10.1117/12.703157

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