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Proceedings Paper

Beam shaping with numerically optimized photonic crystals
Author(s): Darius Gailevičius; Vytautas Purlys; Martynas Peckus; Roaldas Gadonas; Kestutis Staliunas
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Paper Abstract

Photonic crystal spatial filters is a potential solution to suppress multimode operation in micro-cavity lasers increasing the output beam spatial quality and its brightness. Here we propose that the operation of such PhCs can be improved by solving the inverse design problem with the use of chirped structure seed configuration without performing costly global searches. We experimentally prove the feasibility of such method by fabricating the PhC filters in Foturan photosensitive glass, opening new opportunities for photonic integration. The improvement goes beyond earlier achievements by factor of two for different desired lengths of the crystal.

Paper Details

Date Published: 22 February 2017
PDF: 7 pages
Proc. SPIE 10085, Components and Packaging for Laser Systems III, 1008510 (22 February 2017); doi: 10.1117/12.2254735
Show Author Affiliations
Darius Gailevičius, Vilnius Univ. (Lithuania)
Vytautas Purlys, Vilnius Univ. (Lithuania)
Martynas Peckus, Vilnius Univ. (Lithuania)
Roaldas Gadonas, Vilnius Univ. (Lithuania)
Kestutis Staliunas, Univ. Politècnica de Catalunya (Spain)
Institució Catalana de Reserca i Estudis Avançats (Spain)

Published in SPIE Proceedings Vol. 10085:
Components and Packaging for Laser Systems III
Alexei L. Glebov; Paul O. Leisher, Editor(s)

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