Simplified and fast acquirable BOTDA with frequency-swept probe pulse

Chihiro Kito; Hiroshi Takahashi; Kunihiro Toge; Tetsuya Manabe

doi:10.1117/12.2265528

23 April 2017 Simplified and fast acquirable BOTDA with frequency-swept probe pulse

Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032305 (2017) https://doi.org/10.1117/12.2265528
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We propose a novel BOTDA that can measure a BFS change appearing on a time axis with a single-shot measurement by using a frequency-swept probe pulse. The proposed method employs a very simple laser control and detection system, without precise test light frequency control, and with an oscilloscope. We demonstrate a fast BFS distribution measurement completed within 0.33 s with 1.8 MHz BFS accuracy for a 10 km range, and discuss its advantages compared with conventional BOTDA.

Citation Download Citation

Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, and Tetsuya Manabe "Simplified and fast acquirable BOTDA with frequency-swept probe pulse", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032305 (23 April 2017); https://doi.org/10.1117/12.2265528

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