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Proceedings Paper

Polarization characteristics of a linearly polarized laser beam after hollow light pipe in projectors
Author(s): PengFei Zhao; Shengtao Zhang; Yanhong Wang; Yunbo Shi; XuYuan Chen
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Paper Abstract

In this work, a multilayered dielectric film and metallic film are used as reflecting surface to fabricate light pipe. Linearly polarized laser beam with wave length of 532nm enters into the light pipe. After multi-reflection process, laser beam come out from the light pipe. We have found that the polarization state of linearly polarized incident light after reflection are different for the light pipe coated with metal and multilayered dielectric film. We also found a distributed polarization characteristic in the output optical field. The polarization degree has been simulated by using ZEMAX software. Laser speckle contrast from a glass diffuser is measured to exam the simulated result.

Paper Details

Date Published: 26 November 2012
PDF: 7 pages
Proc. SPIE 8557, Optical Design and Testing V, 855722 (26 November 2012); doi: 10.1117/12.2000616
Show Author Affiliations
PengFei Zhao, North Univ. of China (China)
Shengtao Zhang, North Univ. of China (China)
Yanhong Wang, North Univ. of China (China)
Yunbo Shi, North Univ. of China (China)
XuYuan Chen, North Univ. of China (China)
Vestfold Univ. College (Norway)

Published in SPIE Proceedings Vol. 8557:
Optical Design and Testing V
Yongtian Wang; Chunlei Du; Hong Hua; Kimio Tatsuno; H. Paul Urbach, Editor(s)

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