oaioai:ir.siom.ac.cn:181231/17140

High sampling rate multi-pulse phase-sensitive OTDR employing frequency division multiplexing

Authors
Publication date
1 January 2014
Publisher
'Instytut Dermatologii Radoslaw Spiewak'
Doi

    Abstract

    A novel high sampling rate multi-pulse phase-sensitive OTDR (Φ-OTDR) employing frequency division multiplexing (FDM) is proposed to increase the sampling rate of the long distance sensor system. Compared with the conventional Φ- OTDR, the new system owns much higher detection bandwidth as more probe pulses are allowed simultaneously traveling in the sensing fiber. The feasibility of the technique is experimentally verified. By multiplexing four different frequencies, we realize a experimental system with 20kHz vibration detection bandwidth over 10km sensing range. ? 2014 SPIE

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    Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences

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    Last time updated on 02/01/2018

    This paper was published in Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences.

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