Abbreviated Journal Title
Opt. Express
Keywords
SAGNAC INTERFEROMETER; SYSTEM; OTDR; Optics
Abstract
We propose and experimentally demonstrate a novel ultra-long range and sensitive distributed fiber vibration sensor. Only one unidirectional Mach-Zehnder interferometer (MZI) is employed in this scheme as the sensing element. In this sensor structure, we utilize chromatic dispersion-induced walk-off effect between the vibration signals sensed by two distributed feedback (DFB) lasers at different wavelengths to locate the vibration position. Vibration signals with frequencies up to 9MHz can be detected and the spatial resolution of 31m is achieved over 320km of the standard single mode fiber. Monitoring multiple vibration sources can also be realized using this scheme.
Journal Title
Optics Express
Volume
22
Issue/Number
3
Publication Date
1-1-2014
Document Type
Article
Language
English
First Page
2167
Last Page
2173
WOS Identifier
ISSN
1094-4087
Recommended Citation
Chen, Qingming; Jin, Chao; Bao, Yuan; Li, Zhaohui; Li, Jianping; Lu, Chao; Yang, Liang; and Li, Guifang, "A distributed fiber vibration sensor utilizing dispersion induced walk-off effect in a unidirectional Mach-Zehnder interferometer" (2014). Faculty Bibliography 2010s. 5165.
https://stars.library.ucf.edu/facultybib2010/5165
Comments
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