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Proceedings Paper

The generation of flat-top beams by complex amplitude modulation with a phase-only spatial light modulator
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Paper Abstract

Phase-only spatial light modulators are now ubiquitous tools in modern optics laboratories, and are often used to generate so-called structured light. In this work we outline the use of a phase-only spatial light modulator to achieve full complex amplitude modulation of the light, i.e., in amplitude and phase. We outline the theoretical concept, and then illustrate its use with the example of the laser beam shaping of Gaussian beams into flat-top beams. We quantify the performance of this approach for the creation of such fields, and compare the results to conventional lossless approaches to flat-top beam generation.

Paper Details

Date Published: 15 October 2012
PDF: 8 pages
Proc. SPIE 8490, Laser Beam Shaping XIII, 849006 (15 October 2012); doi: 10.1117/12.932224
Show Author Affiliations
Adriaan Hendriks, CSIR National Laser Ctr. (South Africa)
Univ. of Stellenbosch (South Africa)
Darryl Naidoo, CSIR National Laser Ctr. (South Africa)
Univ. of Stellenbosch (South Africa)
Filippus S. Roux, CSIR National Laser Ctr. (South Africa)
Carlos López-Mariscal, U.S. Naval Research Lab. (United States)
Andrew Forbes, CSIR National Laser Ctr. (South Africa)
Univ. of Stellenbosch (South Africa)
Univ. of KwaZulu-Natal (South Africa)


Published in SPIE Proceedings Vol. 8490:
Laser Beam Shaping XIII
Andrew Forbes; Todd E. Lizotte, Editor(s)

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