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Proceedings Paper

Study of the model of laser diode emitted beam based on multimode Gaussian distribution
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Paper Abstract

Laser diodes are widely used in many fields, but the poor beam quality is an obvious deficiency. The intensity distribution of a beam from a laser diode in the slow axis is so complex that it is difficult to be described by a Gaussian distribution of a certain order. The beam qualities of a certain type of laser diode in the directions of perpendicular and parallel to junction are evaluated in this paper. The intensity distributions in two directions are described respectively by fundamental mode Gaussian distribution and multi-mode Hermite-Gaussian distribution. The computed data is basically in accord with the experimental data. The mathematical model may provide some suggestions for the designing of optical system with laser diodes and related simulations.

Paper Details

Date Published: 7 January 2008
PDF: 7 pages
Proc. SPIE 6824, Semiconductor Lasers and Applications III, 68241H (7 January 2008); doi: 10.1117/12.757192
Show Author Affiliations
Ping Li, Beijing Institute of Technology (China)
Jianqiang Sun, Beijing Institute of Technology (China)
Huimin Chen, Beijing Institute of Technology (China)
Weirong Guo, Beijing Institute of Technology (China)
Kun Li, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 6824:
Semiconductor Lasers and Applications III
Lianghui Chen; Hiroyuki Suzuki; Paul T. Rudy; Ninghua Zhu, Editor(s)

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