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Proceedings Paper

123 km Φ-OTDR system based on bidirectional erbium-doped fiber amplifier
Author(s): Xiaozhong Tian; Rui Dang; Dongjie Tan; Lu Liu; Haiming Wang
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Paper Abstract

Based on bidirectional Erbium-doped fiber amplifier (B-EDFA), which can amplify not only forward pulse light but also backward Rayleigh scattering light, a long distance (123 km) Φ-OTDR system is demonstrate. In this system, four B-EDFAs are employed to extend sensing length. Meanwhile, by using the difference value of upper-envelope and lower-envelope of Rayleigh scattering trace, the intrusion with SNR of 5.45 dB、3.64 dB and 4.51 dB at three test points of sensing fiber is extracted.

Paper Details

Date Published: 25 October 2016
PDF: 4 pages
Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101580P (25 October 2016); doi: 10.1117/12.2246763
Show Author Affiliations
Xiaozhong Tian, National Engineering Lab. for Pipeline Safety (China)
Rui Dang, PetroChina Pipeline Compressor Set Maintenance, Repair & Overhaul Ctr. (China)
Dongjie Tan, National Engineering Lab. for Pipeline Safety (China)
Lu Liu, National Engineering Lab. for Pipeline Safety (China)
Haiming Wang, National Engineering Lab. for Pipeline Safety (China)


Published in SPIE Proceedings Vol. 10158:
Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage

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