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

Adriaan Hendriks; Darryl Naidoo; Filippus S. Roux; Carlos López-Mariscal; Andrew Forbes

doi:10.1117/12.932224

15 October 2012 The generation of flat-top beams by complex amplitude modulation with a phase-only spatial light modulator

Adriaan Hendriks, Darryl Naidoo, Filippus S. Roux, Carlos López-Mariscal, Andrew Forbes

Author Affiliations +

Proceedings Volume 8490, Laser Beam Shaping XIII; 849006 (2012) https://doi.org/10.1117/12.932224
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

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.

Citation Download Citation

Adriaan Hendriks, Darryl Naidoo, Filippus S. Roux, Carlos López-Mariscal, and Andrew Forbes "The generation of flat-top beams by complex amplitude modulation with a phase-only spatial light modulator", Proc. SPIE 8490, Laser Beam Shaping XIII, 849006 (15 October 2012); https://doi.org/10.1117/12.932224

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