Agile multi-spot beams steering with a phase-only nematic liquid crystal spatial light modulator

Bohan Liu; Jian Zhang

doi:10.1117/12.658641

4 January 2006 Agile multi-spot beams steering with a phase-only nematic liquid crystal spatial light modulator

Bohan Liu, Jian Zhang

Proceedings Volume 5985, International Conference on Space Information Technology; 59855N (2006) https://doi.org/10.1117/12.658641
Event: International Conference on Space information Technology, 2005, Wuhan, China

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%.

Citation Download Citation

Bohan Liu and Jian Zhang "Agile multi-spot beams steering with a phase-only nematic liquid crystal spatial light modulator", Proc. SPIE 5985, International Conference on Space Information Technology, 59855N (4 January 2006); https://doi.org/10.1117/12.658641

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