Fabrication of lenslet grating with multilevel phases

Yingbai Yan; Xu Wang; Changkun Yao; Guofan Jin; Minxian Wu

doi:10.1117/12.132161

20 October 1992 Fabrication of lenslet grating with multilevel phases

Yingbai Yan, Xu Wang, Changkun Yao, Guofan Jin, Minxian Wu

Proceedings Volume 1720, Intl Symp on Optical Fabrication, Testing, and Surface Evaluation; (1992) https://doi.org/10.1117/12.132161
Event: International Symposium on Optical Fabrication, Testing, and Surface Evaluation, 1992, Tokyo, Japan

Abstract

Lenslet arrays with eight-level phases are fabricated by the method of etching and film coating, respectively. The diffraction efficiency of that component is about 80%. Two types of lenslet grating are constructed, the one is a lenslet array with a pinhole grating, and the other is a combination of two sets of lenslet arrays. The homogeneity of the array spots obtained by a lenslet grating is better than that by a single lenslet array. The fabrication process and the testing method are described, some experimental results are listed.

Citation Download Citation

Yingbai Yan, Xu Wang, Changkun Yao, Guofan Jin, and Minxian Wu "Fabrication of lenslet grating with multilevel phases", Proc. SPIE 1720, Intl Symp on Optical Fabrication, Testing, and Surface Evaluation, (20 October 1992); https://doi.org/10.1117/12.132161

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