Fiber laser sensors for micro seismic monitoring

•The goal of the paper is to present some applications on several proposed fiber laser sensors using for micro seismic monitoring.•Fiber laser, a fiber laser hydrophone and a fiber laser accelerometer are introduced.•Field tests of fiber laser hydrophone array used as oil geophone and fiber laser ac...

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Bibliographic Details
Published in:Measurement : journal of the International Measurement Confederation 2016-02, Vol.79, p.203-210
Main Authors: Zhang, Wentao, Wang, Zhaogang, Huang, Wenzhu, Liu, Wenyi, Li, Li, Li, Fang
Format: Article
Language:English
Subjects:
Accelerometer
Fiber laser sensing
Hydrophone
Micro seismic monitoring
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Summary:•The goal of the paper is to present some applications on several proposed fiber laser sensors using for micro seismic monitoring.•Fiber laser, a fiber laser hydrophone and a fiber laser accelerometer are introduced.•Field tests of fiber laser hydrophone array used as oil geophone and fiber laser accelerometer used as seismometer are presented. Micro seismic monitoring technologies based on fiber laser sensors were introduced. Owing to the characteristics of narrow line width, low noise, fiber laser sensing can achieve high sensitivity and low system noise through some methods, such as enhance-sensitivity packaging, interferometric demodulation technology. With the advantages of small in size, resistant to high temperature and pressure, and easy to be wavelength division multiplexing, it is very fit for micro seismic monitoring. The principles of fiber laser hydrophone and fiber laser accelerometer were described. Some factual application examples of using these fiber laser sensors for micro seismic monitoring were presented.
ISSN:0263-2241
1873-412X
DOI:10.1016/j.measurement.2015.09.046