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Proceedings Paper

Beam shaping of stack pulse laser diodes
Author(s): Desheng Xin; Jianjia Zhang; Ling Wang; Mengmeng Zhang; Xiguang Ma
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Paper Abstract

The research on beam shaping of stack pulse laser diodes (LDs), which have little emitter interval and bigger discreteness, by means of the technology of photolithography, filming, precision position adjusting and fiber cylindrical lens array, and on relative technologies are introduced in this paper. To obtain high peak power, which is in need of application fields such as laser ranging, laser fuse, laser guidance, gate imaging and laser radar, direct stacking pulse LDs are widely adopted, but the research on the relative beam shaping technology is done seldom. Owing to the micro-lens is processed once only during the fabrication and the range interval of it is fixed, technologies now available is difficult to take account of beam shaping and the interval discreteness of stack pulse LDs. The most advantageous of fiber cylindrical lens array introduced in this paper is that it can adjust precisely every unit in the array respectively according to the real emitting interval of stack pulse laser diodes, and carry out beam shaping effectively. After that the high effectively coupling of multi-mode fiber can be realized. Thus the practical effect of stack pulse LDs is improved in a large degree.

Paper Details

Date Published: 7 January 2008
PDF: 5 pages
Proc. SPIE 6824, Semiconductor Lasers and Applications III, 682413 (7 January 2008); doi: 10.1117/12.755404
Show Author Affiliations
Desheng Xin, Changchun Univ. of Science and Technology (China)
Jianjia Zhang, Changchun Univ. of Science and Technology (China)
Ling Wang, Changchun Univ. of Science and Technology (China)
Mengmeng Zhang, Changchun Univ. of Science and Technology (China)
Xiguang Ma, Changchun Univ. of Science and 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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