带扫频探头脉冲的简化快速BOTDA

2017 25th Optical Fiber Sensors Conference (OFS) Pub Date : 2017-04-23 DOI:10.1117/12.2265528

C. Kito, Hiroshi Takahashi, K. Toge, Tetsuya Manabe

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引用次数: 1

摘要

我们提出了一种新的BOTDA，它可以通过使用扫频探针脉冲的单次测量来测量出现在时间轴上的BFS变化。该方法采用非常简单的激光控制和检测系统，没有精确的测试光频控制，并带有示波器。我们演示了在0.33秒内以1.8 MHz BFS精度完成10 km范围内的快速BFS分布测量，并讨论了与传统BOTDA相比的优势。

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Simplified and fast acquirable BOTDA with frequency-swept probe pulse

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.

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2017 25th Optical Fiber Sensors Conference (OFS)

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