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Proceedings Paper

A polarimeter based on electric-optical material
Author(s): Yubo Li; Wenjian Jia; Zhengjue Wu; Guobing Wang; Minghua Wang; Jianyi Yang
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Paper Abstract

This paper presents a polarimeter for simultaneous measurement of variation in magnitude phase retardation, azimuth and principal axis angle of the incident light. The configuration is based on dual-liquid-crystal-modulator (Dual-LCM) which is used to enhance the measurement's S/N and resolution. The changes of these three parameters are measured by a very simple digital signal processing system. Compared to the conventional configurations, the proposed polarimeter offers an easier setup, high system stability and repeatability. The results show that our system has the advantages of wide measurable domain for the whole-polarization and high measurement precision. The results indicate that the maximum absolute errors of the phase retardation, azimuth and principal axis angle are 0.24°, 0.14° and 0.31°, respectively. Finally, the dynamic ranges of the principal-axis angle measurement and the phase-retardation measurement extend as far as 360° and the measurement precision is below 0.31°.

Paper Details

Date Published: 6 October 2006
PDF: 5 pages
Proc. SPIE 6352, Optoelectronic Materials and Devices, 63522Q (6 October 2006); doi: 10.1117/12.688152
Show Author Affiliations
Yubo Li, Zhejiang Univ. (China)
Wenjian Jia, Zhejiang Univ. (China)
Zhengjue Wu, Zhejiang Univ. (China)
Guobing Wang, Zhejiang Univ. (China)
Minghua Wang, Zhejiang Univ. (China)
Jianyi Yang, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 6352:
Optoelectronic Materials and Devices
Yong Hee Lee; Fumio Koyama; Yi Luo, Editor(s)

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