29 August 2006 High power liquid crystal spatial light modulators
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Abstract
A scalable wavefront control approach based upon proven liquid crystal (LC) spatial light modulator (SLM) technology was extended for potential use in high-energy near-infrared laser applications. With use of an ultra-low absorption transparent conductor in the LC SLM and materials with better physical properties, the laser power handling capability of the device was improved. The experimental results are reported regarding a LC SLM functioning as a wavefront control device under illumination of a kilo-watt laser source. Compared to conventional deformable mirrors, this non-mechanical wavefront control approach offers substantial improvements in speed (bandwidth), resolution, power consumption and system weight/volume, and the zero-coupling between pixels enables a fast feed-forward wavefront correction scheme.
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D. Gu, D. Gu, B. Wen, B. Wen, M. Mahajan, M. Mahajan, D. Taber, D. Taber, B. Winker, B. Winker, D. Guthals, D. Guthals, B. Campbell, B. Campbell, D. Sox, D. Sox, } "High power liquid crystal spatial light modulators", Proc. SPIE 6306, Advanced Wavefront Control: Methods, Devices, and Applications IV, 630602 (29 August 2006); doi: 10.1117/12.683829; https://doi.org/10.1117/12.683829
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