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Applied Optics

Applied Optics


  • Vol. 44, Iss. 26 — Sep. 10, 2005
  • pp: 5408–5414

Asymmetrical prism for beam shaping of laser diode stacks

Xiaodong Zeng, Changqing Cao, and Yuying An  »View Author Affiliations

Applied Optics, Vol. 44, Issue 26, pp. 5408-5414 (2005)

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A beam-shaping scheme for a laser diode stack to obtain a flattop output intensity profile is proposed. The shaping element consists of an asymmetrical glass prism. The large divergence-angle compression in the direction perpendicular to the junction plane and the small divergence-angle expansion in the parallel direction are performed simultaneously by a single shaping element. The transformation characteristics are presented, and the optimization performance is investigated based on the ray-tracing method. Analysis shows that a flattop intensity profile can be obtained. This beam-shaping system can be fabricated easily and has a large alignment tolerance.

© 2005 Optical Society of America

OCIS Codes
(140.2010) Lasers and laser optics : Diode laser arrays
(140.2020) Lasers and laser optics : Diode lasers
(140.3300) Lasers and laser optics : Laser beam shaping
(220.2740) Optical design and fabrication : Geometric optical design

Original Manuscript: February 17, 2005
Revised Manuscript: May 6, 2005
Manuscript Accepted: May 9, 2005
Published: September 10, 2005

Xiaodong Zeng, Changqing Cao, and Yuying An, "Asymmetrical prism for beam shaping of laser diode stacks," Appl. Opt. 44, 5408-5414 (2005)

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