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Proceedings Paper

Amplification of higher-order Poincaré sphere beams
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Paper Abstract

The Higher order Poincar´e sphere (HOPS) is generally used to describe scalar and vector orbital angular momentum modes. These modes have found many applications to date; however, they are limited to low power levels. It has thus become topical to consider amplification of such structured light modes. Here, we study the purity of the HOPS beams in a master oscillator power amplifier configuration using recently developed characterization tools through birefringent and non-birefringent amplifiers. We outline a general theory for this problem where we consider both gain and vector perspectives, and confirm our theory by experiment.

Paper Details

Date Published: 9 September 2019
PDF: 11 pages
Proc. SPIE 11107, Laser Beam Shaping XIX, 111070V (9 September 2019); doi: 10.1117/12.2542294
Show Author Affiliations
Darryl Naidoo, CSIR National Laser Ctr. (South Africa)
Univ. of the Witwatersrand, Johannesburg (South Africa)
Hend Sroor, Univ. of the Witwatersrand, Johannesburg (South Africa)
Igor Litvin, Freie Univ. Berlin (Germany)
Andrew Forbes, Univ. of the Witwatersrand, Johannesburg (South Africa)

Published in SPIE Proceedings Vol. 11107:
Laser Beam Shaping XIX
Angela Dudley; Alexander V. Laskin, Editor(s)

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