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Proceedings Paper

Ring beam experiment with a phase-only spatial light modulator
Author(s): Qi Li; Xue Ma; Guang-Hao Chen
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Paper Abstract

The phase-only liquid crystal spatial light modulator (SLM) is a real-time electro-optic device capable of modulating the phase of an optical wavefront in space. SLMs have been harnessed for beam shaping. In this paper, an accelerated GS phase retrieval and iteration algorithm is used for designing the SLM phases which transformed a single-mode He-Ne laser into a ring-shaped pattern. These generated ring beams are investigated experimentally and the phenomena of the added prism phases are also observed. The experimental results showed that a given single-mode laser beam could be converted into a ring-shaped intensity distribution which corresponds to our designation.

Paper Details

Date Published: 11 November 2014
PDF: 5 pages
Proc. SPIE 9271, Holography, Diffractive Optics, and Applications VI, 927113 (11 November 2014); doi: 10.1117/12.2073624
Show Author Affiliations
Qi Li, Harbin Institute of Technology (China)
Xue Ma, Harbin Institute of Technology (China)
Guang-Hao Chen, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 9271:
Holography, Diffractive Optics, and Applications VI
Yunlong Sheng; Chongxiu Yu; Changhe Zhou, Editor(s)

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