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

Ping Li*, Jianqiang Sun, Huimin Chen, Weirong Guo, Kun Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationSemiconductor Lasers and Applications III
DOIs
Publication statusPublished - 2008
EventSemiconductor Lasers and Applications III - Beijing, China
Duration: 12 Nov 200713 Nov 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6824
ISSN (Print)0277-786X

Conference

ConferenceSemiconductor Lasers and Applications III
Country/TerritoryChina
CityBeijing
Period12/11/0713/11/07

Keywords

  • Beam quality
  • Hermite-Gaussian distribution
  • Laser diode

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