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Proceedings Paper

Agile multi-spot beams steering with a phase-only nematic liquid crystal spatial light modulator
Author(s): Bohan Liu; Jian Zhang
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Paper Abstract

A 256×256 pixels commercial phase-only Liquid Crystal Spatial Light Modulator (LCSLM) is adopted to generate arbitrary spot patterns successfully. An improved Fourier iterative algorithm combining with pseudorandom phase encoding is proposed to satisfy the real-time processing requirement. The improved algorithm based on the (Gerchberg-Saxton) G-S algorithm with the initial phases generated by the pseudorandom phase encoding method. By employing the improved algorithm, the intensity error of a 4×4 spots array pattern is less than 7%.

Paper Details

Date Published: 4 January 2006
PDF: 5 pages
Proc. SPIE 5985, International Conference on Space Information Technology, 59855N (4 January 2006); doi: 10.1117/12.658641
Show Author Affiliations
Bohan Liu, Harbin Institute of Technology (China)
Jian Zhang, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 5985:
International Conference on Space Information Technology
Cheng Wang; Shan Zhong; Xiulin Hu, Editor(s)

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