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Proceedings Paper

Three-guide coupled rectangular ring lasers with total internal reflection mirrors
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Paper Abstract

The lasing characteristics of three-guide coupled ring lasers using the self-aligned total internal reflection (TIR) mirrors were investigated numerically and experimentally. The rectangular laser cavity consists of four low loss TIR mirrors and an output coupler made out of passive three coupled waveguides. Two different lasers having active section lengths of 250 and 350 μm and total cavity lengths of 580 and 780 μm are fabricated. For both devices lasing thresholds of 38 mA is obtained at room temperature and under CW operation. Lasing is predominantly single mode with the side mode suppression ratio better than 20 dB.

Paper Details

Date Published: 29 January 2008
PDF: 8 pages
Proc. SPIE 6909, Novel In-Plane Semiconductor Lasers VII, 69090D (29 January 2008); doi: 10.1117/12.762030
Show Author Affiliations
Doo Gun Kim, Chung-Ang Univ. (South Korea)
Woon Kyung Choi, Chung-Ang Univ. (South Korea)
In-Il Jung, Chung-Ang Univ. (South Korea)
Geum-Yoon Oh, Chung-Ang Univ. (South Korea)
Young Wan Choi, Chung-Ang Univ. (South Korea)
Jong Chang Yi, Hong-Ik Univ. (South Korea)
Nadir Dagli, Univ. of California, Santa Barbara (United States)

Published in SPIE Proceedings Vol. 6909:
Novel In-Plane Semiconductor Lasers VII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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