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Proceedings Paper

Design of a refractive optical system that converts a Gaussian beam to a ring shaped pattern beam
Author(s): Haotong Ma; Xiaobo Wang; Pu Zhou; Xiaolin Wang; Yanxing Ma; Xiaojun Xu; Zejin Liu
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Paper Abstract

In this paper, a system of two lenses is designed, which can efficiently convert a collimated Gaussian beam to a ring shaped pattern beam. The surfaces distribution of the two lenses is determined by using the energy conservation and the constant optical path-length condition. The design consideration is analyzed in detail. The intensity distribution of the ring shaped pattern beam can be controlled. The reshaping effect has been numerically simulated with Fourier optics methods. The influences of the waist change and decenter of the Gaussian beam have also been discussed in detail. In addition, the phase profile has been calculated after laser reshaping. The result is verified experimentally by using the phase only liquid crystal spatial light modulator (LC-SLM).

Paper Details

Date Published: 20 November 2009
PDF: 9 pages
Proc. SPIE 7507, 2009 International Conference on Optical Instruments and Technology: Optical Trapping and Microscopic Imaging, 750706 (20 November 2009); doi: 10.1117/12.838087
Show Author Affiliations
Haotong Ma, National Univ. of Defense Technology (China)
Xiaobo Wang, National Univ. of Defense Technology (China)
Pu Zhou, National Univ. of Defense Technology (China)
Xiaolin Wang, National Univ. of Defense Technology (China)
Yanxing Ma, National Univ. of Defense Technology (China)
Xiaojun Xu, National Univ. of Defense Technology (China)
Zejin Liu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7507:
2009 International Conference on Optical Instruments and Technology: Optical Trapping and Microscopic Imaging
Xiaocong Yuan; Yinmei Li; Arthur Chiou; Min Gu; Dennis Matthews; Colin Sheppard, Editor(s)

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