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|Title:||Real-time Distributed Fiber Microphone Based On Phase-otdr|
|Abstract:||The use of an optical fiber as a real-time distributed microphone is demonstrated employing a phase-OTDR with direct detection. The method comprises a sample-and-hold circuit capable of both tuning the receiver to an arbitrary section of the fiber considered of interest and to recover in real-time the detected acoustic wave. The system allows listening to the sound of a sinusoidal disturbance with variable frequency, music and human voice with similar to 60 cm of spatial resolution through a 300 m long optical fiber. (C) 2016 Optical Society of America|
|Editor:||Optical Soc Amer|
|Citation:||Optics Express. Optical Soc Amer, v. 24, p. 29597 - 29602, 2016.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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