Temperature performance of Raman scattering in data fiber and its application in distributed temperature fiber-optic sensor

Abstract

A wavelength division multiplexer (WDM) was used to extract the Raman scattering signal from a data fiber. The temperature performance of Raman scattering spectrum was studied theoretically and experimentally. On the base of this study, a distributed fiber-optic temperature sensor (DFTS) system was developed. The sensing distance was 4km. The temperature accuracy and the distance resolution reached to±1°C and±1m, respectively. The system is stable and adequate for commercial usage, such as the power industry, the underground tunnel, the subway, and the pipe laying, and also for the mission applications, such as the warship and the airplane.

Keywords

fiber-optic sensor / distributed temperature sensor / data fiber / Raman scattering

References

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Acknowledgements

This work was supported by Innovation Funding of MOST, China (No. 07C26224200656). The authors greatly appreciated the funding support from the National Foundation for Mid- and Small Companies of the Ministry of Science and Technology of China and from the Wuhan Institute of High-Voltage, China.

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg