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Proceedings Paper

Lateral mode controlled wide-stripe-lasers by modal reflector
Author(s): K. Shigihara; Y. Nagai; Yoshihiro Kokubo; Hirosi Matsubara; Kenji Ikeda; Wataru Susaki
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Paper Abstract

A modal reflector having a high reflective (about 40 percent) region with 24 microns, 48 microns or 96 microns width on the output facet, and applied to gain-guided wide (150 microns) stripe lasers, is described. The partially high reflective region composing the modal reflector consists of an Al2O3/a-Si multilayer whose thickness is determined so as to match in phase between a part of the output from the highly reflective region and remaining outupt from the low reflective ( about 1 percent) region in order to reduce side peaks (fringes) in far-field patterns. Single-lobed far-field patterns for lateral direction as narrow as from 0.88 deg to about 3.5 deg are observed at up to 0.4 W under CW condition.

Paper Details

Date Published: 1 May 1990
PDF: 7 pages
Proc. SPIE 1219, Laser Diode Technology and Applications II, (1 May 1990); doi: 10.1117/12.18254
Show Author Affiliations
K. Shigihara, Mitsubishi Electric Corp. (Japan)
Y. Nagai, Mitsubishi Electric Corp. (Japan)
Yoshihiro Kokubo, Mitsubishi Electric Corp. (Japan)
Hirosi Matsubara, Mitsubishi Electric Corp. (Japan)
Kenji Ikeda, Mitsubishi Electric Corp. (Japan)
Wataru Susaki, Mitsubishi Electric Corp. (Japan)

Published in SPIE Proceedings Vol. 1219:
Laser Diode Technology and Applications II
Dan Botez; Luis Figueroa, Editor(s)

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