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Optical Engineering

Compensation of phase error in optical frequency-domain reflectometry using delay-matched sampling
Author(s): Qian Zhou; Weilin Xie; Zongyang Xia; Hongxiao Shi; Yi Dong; Weisheng Hu
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Paper Abstract

We proposed and experimentally demonstrated a delay-match sampling method to measure and compensate the laser phase error in optical frequency-domain reflectometry system. By using the error signal extracted from a simple auxiliary Mach-Zehnder interferometer with only a 10-ns delay, the laser phase error is effectively compensated. Considerable improvement is achieved in spatial resolution from 200 m to 7 cm at a measurement distance over 10 times the round-trip laser coherence length.

Paper Details

Date Published: 11 July 2014
PDF: 5 pages
Opt. Eng. 53(7) 074103 doi: 10.1117/1.OE.53.7.074103
Published in: Optical Engineering Volume 53, Issue 7
Show Author Affiliations
Qian Zhou, Shanghai Jiao Tong Univ. (China)
Weilin Xie, Shanghai Jiao Tong Univ. (China)
Zongyang Xia, Shanghai Jiao Tong Univ. (China)
Hongxiao Shi, Shanghai Jiao Tong Univ. (China)
Yi Dong, Shanghai Jiao Tong Univ. (China)
Weisheng Hu, Shanghai Jiao Tong Univ. (China)

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