Fabrication and testing of a diffractive optical element for improving LD divergent angles

Wenxi Liang; JingJuan Zhang; Junfeng Lu; Rui Liao

doi:10.1117/12.402778

6 October 2000 Fabrication and testing of a diffractive optical element for improving LD divergent angles

Wenxi Liang, JingJuan Zhang, Junfeng Lu, Rui Liao

Proceedings Volume 4231, Advanced Optical Manufacturing and Testing Technology 2000; (2000) https://doi.org/10.1117/12.402778
Event: International Topical Symposium on Advanced Optical Manufacturing and Testing Technology, 2000, Chengdu, China

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.

Citation Download Citation

Wenxi Liang, JingJuan Zhang, Junfeng Lu, and Rui Liao "Fabrication and testing of a diffractive optical element for improving LD divergent angles", Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); https://doi.org/10.1117/12.402778

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