Lateral‐mode discrimination in broad‐area semiconductor lasers with a smooth spatially filtering output facet
作者:
Nathalie McCarthy,
Yves Champagne,
期刊:
Journal of Applied Physics
(AIP Available online 1990)
卷期:
Volume 67,
issue 6
页码: 3192-3194
ISSN:0021-8979
年代: 1990
DOI:10.1063/1.345403
出版商: AIP
数据来源: AIP
摘要:
We present numerical simulations of broad‐area semiconductor lasers with smooth spatial filtering at the output facet. The beam‐propagation and Prony methods are used to calculate the beam characteristics and discrimination against higher‐order lateral modes of the laser devices. With an output facet having a Gaussian reflectivity profile, the fundamental lateral mode is favored. Discrimination between the two lowest‐order modes increases significantly with narrow reflectivity profiles.
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