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Lateral-mode discrimination in surface-emitting DBR lasers with cylindrical symmetry
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Lateral-mode discrimination in surface-emitting DBR lasers with cylindrical symmetry
Lateral-mode discrimination in surface-emitting DBR lasers with cylindrical symmetry
XG
Xue-Mei Gong
Xue-Mei Gong
AC
Andrew K. Chan
Andrew K. Chan
HT
Henry F. Taylor
Henry F. Taylor
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1 July 1991
proceedings article
Published by
SPIE-Intl Soc Optical Eng
Vol. 1418
,
422-433
https://doi.org/10.1117/12.43828
Abstract
A surface emitting DBR laser with cylindrical symmetry operating in a single lateral mode is investigated. The effective reflectivity resulting from the grating and the threshold gain of the different lateral modes are analyzed using the coupled-mode theory. The authors' results indicate that when a cavity is designed for operation in the odd lateral modes, all the even modes are effectively eliminated. A small perturbation is introduced into the complex dielectric constant of the active region to further suppress the unwanted lateral modes and produce single mode operation.© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Keywords
DISTRIBUTED BRAGG REFLECTORS
LASERS
REFLECTIVITY
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