Simplified and fast acquirable BOTDA with frequency-swept probe pulse
| Autor: | Hiroshi Takahashi, Kunihiro Toge, Chihiro Kito, Tetsuya Manabe |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Automatic frequency control Measure (physics) 02 engineering and technology Laser Temperature measurement Sweep frequency response analysis Time–frequency analysis law.invention Pulse (physics) 020210 optoelectronics & photonics Optics law 0202 electrical engineering electronic engineering information engineering Oscilloscope business |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2265528 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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