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Proceedings Paper

Study on propagation characteristics of a high-powered multi-quantum-well (MQW) LD beam
Author(s): You Wang; Xiang Wu; Hiroyasu Fujiwara; Takehito Nagakura; Zukang Lu; Hirofumi Kan
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Paper Abstract

The beam propagation properties of the high-powered Multi-Quantum-Well (MQW) laser diode (LD) are definitive elements in many application fields such as micro-processing, biomedical technique, and basic research, etc. In this study, the beam characteristics of a high-powered InGaAs/AlGaAs MQW-LD have been evaluated in both fast-axis and slow-axis. The multi-planar waveguide model and the non-paraxial second-order moment theory were used in analyses of the beam propagation features in the direction perpendicular to the active layer of a MQW-LD. The experimental results of the beam character measurement accord with those of the theoretical calculation very well for a sampled InGaAs/AlGaAs MQW-LD. The analysis approach is thought to be useful for design of the LDs and the other waveguiding optical devices.

Paper Details

Date Published: 20 January 2005
PDF: 11 pages
Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); doi: 10.1117/12.572080
Show Author Affiliations
You Wang, Hamamatsu Photonics K.K. (Japan)
Xiang Wu, Zhejiang Univ. (China)
Hiroyasu Fujiwara, Hamamatsu Photonics K.K. (Japan)
Takehito Nagakura, Hamamatsu Photonics K.K. (Japan)
Zukang Lu, Zhejiang Univ. (China)
Hirofumi Kan, Hamamatsu Photonics K.K. (Japan)

Published in SPIE Proceedings Vol. 5628:
Semiconductor Lasers and Applications II
Jian-quan Yao; Yung Jui Chen; Seok Lee, Editor(s)

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