Surface test of continuous phase plate with stitching technique

Rongzhu Zhang

doi:10.1117/12.834195

20 May 2009 Surface test of continuous phase plate with stitching technique

Rongzhu Zhang

Author Affiliations +

Proceedings Volume 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 72831D (2009) https://doi.org/10.1117/12.834195
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

In high power laser system, continuous phase plate (CPP) is used as a beam smoothing element. Different from traditional plane or spherical elements, the surface of CPP is more complex. Since the surface information with mid-spatial-frequency of a CPP cannot be treated as a kind of noise, so it is difficult to test and analyze the surface quality by ordinary interferometer. The stitching method is used to test CPP. The basic principle and technological process of the test are introduced. The surface shape of a CPP is recovered successfully by using this method.

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Rongzhu Zhang "Surface test of continuous phase plate with stitching technique", Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 72831D (20 May 2009); https://doi.org/10.1117/12.834195

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