Generation of flattop focusing with second order full Poincaré beams

Wen Cheng; Wei Han; Qiwen Zhan

doi:10.1117/12.892869

7 September 2011 Generation of flattop focusing with second order full Poincaré beams

Wen Cheng, Wei Han, Qiwen Zhan

Proceedings Volume 8130, Laser Beam Shaping XII; 81300D (2011) https://doi.org/10.1117/12.892869
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

In this paper, the generation of two-dimensional flattop focusing with second order full Poincaré beams under low numerical aperture focusing condition is proposed and experimentally demonstrated by using a liquid crystal spatial light modulator (SLM). Different input beam sizes can be accommodated by conveniently rotating the half-wave plate and adjusting the working distance. Furthermore, the quantization of the phase pattern loaded onto the SLM has been theoretically and experimentally studied, which potentially may lead to the fabrication of a compact versatile flattop beam shaper. High quality flattop profiles with steep edge roll-off can be obtained with this technique.

Citation Download Citation

Wen Cheng, Wei Han, and Qiwen Zhan "Generation of flattop focusing with second order full Poincaré beams", Proc. SPIE 8130, Laser Beam Shaping XII, 81300D (7 September 2011); https://doi.org/10.1117/12.892869

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