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Proceedings Paper

A scheme for maintaining phase modulation amplitude at best value of fiber optic sensors using phase generated carrier
Author(s): Jianhui Zhu; Min Zhang; Yanbiao Liao; Wu Kuang; Liwei Wang
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Paper Abstract

This article firstly gives out when the phase modulation amplitude is at best value of homodyne demodulation using phase generated carrier, and then presents three methods that can be realized to get the best value. Some differences based on practicality are made among them, and a method which is easy to be implemented by digital circuits, is chosen to be carried out by digital circuits. Also this paper gives out simulation analysis and real experiment results. The error range is from -3.80% to 2.11% with real system. The origins of the error limiting the accuracy are discussed.

Paper Details

Date Published: 5 November 2005
PDF: 10 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 59980Q (5 November 2005); doi: 10.1117/12.630228
Show Author Affiliations
Jianhui Zhu, Tsinghua Univ. (China)
Min Zhang, Tsinghua Univ. (China)
Yanbiao Liao, Tsinghua Univ. (China)
Wu Kuang, Tsinghua Univ. (China)
Liwei Wang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

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