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Proceedings Paper

Fabrication and testing of a diffractive optical element for improving LD divergent angles
Author(s): Wenxi Liang; JingJuan Zhang; Junfeng Lu; Rui Liao
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Paper Abstract

We designed and fabricated a diffractive optical element (DOE) applied to improve the characteristics of the divergent angles of the high power infrared semiconductor laser. The fabrication of the DOE and the test of the infrared illuminating system integrated with the DOE are studied in this paper. In order to reduce the difficulty of the micro- fabrication, we proposed a method of quantizing the continuous profile partly with different level while the DOE was designed. The diffraction efficiency of the DOE and the ellipticity of the illuminating system were tested and the results of the experiment illustrated that the DOE with variable-level step phase achieved the design requirement very well.

Paper Details

Date Published: 6 October 2000
PDF: 6 pages
Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); doi: 10.1117/12.402778
Show Author Affiliations
Wenxi Liang, Univ. of Science and Technology of China (China)
JingJuan Zhang, Univ. of Science and Technology of China (China)
Junfeng Lu, Univ. of Science and Technology of China (China)
Rui Liao, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 4231:
Advanced Optical Manufacturing and Testing Technology 2000
Li Yang; Harvey M. Pollicove; Qiming Xin; James C. Wyant, Editor(s)

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