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Proceedings Paper

Bent waveguide cavities
Author(s): Sławomir Sujecki; Eric C. Larkins
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Paper Abstract

Broad area lasers can provide an optical beam with high power, but at the expense of low beam quality. One of the ways to improve their brightness is to operate broad area lasers in an external cavity scheme, using free-space optics to provide spatial and spectral filtering. Bent waveguide lasers have been proposed to eliminate undesirable resonances caused by the antireflection coated facet of the laser, which would impair the proper operation of the external cavity. In this paper, the influence of the bend radius, waveguide width and refractive index contrast on the properties of the bent waveguide cavities has been investigated. For the purpose of the analysis, the wide-angle finite difference beam propagation method was used.

Paper Details

Date Published: 12 October 2005
PDF: 9 pages
Proc. SPIE 5958, Lasers and Applications, 59580W (12 October 2005); doi: 10.1117/12.622009
Show Author Affiliations
Sławomir Sujecki, Univ. of Nottingham (United Kingdom)
Eric C. Larkins, Univ. of Nottingham (United Kingdom)


Published in SPIE Proceedings Vol. 5958:
Lasers and Applications
Krzysztof M. Abramski; Antonio Lapucci; Edward F. Plinski, Editor(s)

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