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Proceedings Paper

Transformation of Gaussian to uniform or annular beams by a radial birefringent filter
Author(s): Maojin Yun; Liren Liu; Jianfeng Sun; Aimin Yan; Yu Zhou
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Paper Abstract

The radial birefringent filter for shaping a Gaussian profile to uniform or annular beams has been designed and simulated. It consists of a radial birefringent lens sandwiched between two polarizers. Through designing the three essential parameters, the Gaussian beams can be transformed into uniform or annular beams. Certainly other profiles of the out beams can be obtained just by rotating either of the polarizers. Its performance properties and its design procedures in laser beam shaping system are studied in detail. Such a filter has advantages that it is relatively simple to construct as it requires no phase changes and low cost replication is possible, but one inherent disadvantage of it is its energy loss because of the absorption of light in the two polarizers.

Paper Details

Date Published: 29 September 2004
PDF: 6 pages
Proc. SPIE 5525, Laser Beam Shaping V, (29 September 2004); doi: 10.1117/12.557877
Show Author Affiliations
Maojin Yun, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Aimin Yan, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Yu Zhou, Shanghai Institute of Optics and Fine Mechanics, CAS (China)


Published in SPIE Proceedings Vol. 5525:
Laser Beam Shaping V
Fred M. Dickey; David L. Shealy, Editor(s)

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