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Proceedings Paper

Far-field Gaussian beam shaping under the diffraction limits
Author(s): Shuyun Teng; Liren Liu; Zhu Luan
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Paper Abstract

In this paper, recurring to the main idea of G-S algorithm, an inverse transmission optimization algorithm is proposed to establish the phase structure of the compensation phase plate, which can realize the shaping of Gaussian beam in far diffraction field. This method not only overcomes the disadvantage of G-S algorithm in convergence which is applied to shape Gaussian beam under the diffraction limits, but the obtained phase plate is more convenient for the practical fabrication. According to the inverse transmission optimization algorithm, we transform successfully Gaussian laser beam into the flat-top, the doughnut-like beam and the two-rings beam within the diffractive limits region. The corresponding numerical results are provided.

Paper Details

Date Published: 29 September 2004
PDF: 8 pages
Proc. SPIE 5525, Laser Beam Shaping V, (29 September 2004); doi: 10.1117/12.557899
Show Author Affiliations
Shuyun Teng, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics, CAS (China)
Zhu Luan, 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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