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Proceedings Paper

Long-range high spatial resolution optical frequency-domain reflectometry based on optimized deskew filter method
Author(s): Zhenyang Ding; Yang Du; Tiegen Liu; X. Steve Yao; Bowen Feng; Kun Liu; Junfeng Jiang
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Paper Abstract

We present a long-range high spatial resolution optical frequency-domain reflectometry (OFDR) based on optimized deskew filter method. In proposed method, the frequency tuning nonlinear phase obtained from an auxiliary interferometer is used to compensate the nonlinear phase of the beating signals generated from a main OFDR interferometer using a deskew filter. The method can be applied for the entire spatial domain of the OFDR signals at once with a high computational efficiency. In addition, we apply the methods of higher orders of Taylor expansion and cepstrum analysis to improve the estimation accuracy of nonlinear phase. We experimentally achieve a measurement range of 80 km and a spatial resolution of 20 cm and 80 cm at distances of 10 km and 80 km that is about 187 times enhancement when compared with that of the same OFDR trace without nonlinearity compensation. The improved performance of the OFDR with the high spatial resolution, long measurement range and short process time will lead to practical applications in real-time monitoring and measurement of the optical fiber communication and sensing systems.

Paper Details

Date Published: 11 November 2014
PDF: 8 pages
Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 927407 (11 November 2014); doi: 10.1117/12.2071282
Show Author Affiliations
Zhenyang Ding, Tianjin Univ. (China)
Yang Du, Tianjin Univ. (China)
Tiegen Liu, Tianjin Univ. (China)
X. Steve Yao, Tianjin Univ. (China)
General Photonics Corp. (United States)
Bowen Feng, Tianjin Univ. (China)
Kun Liu, Tianjin Univ. (China)
Junfeng Jiang, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 9274:
Advanced Sensor Systems and Applications VI
Tiegen Liu; Shibin Jiang; Niels Neumann, Editor(s)

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