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Frontiers of Optoelectronics

Front Optoelec Chin    2009, Vol. 2 Issue (2) : 215-218     DOI: 10.1007/s12200-009-0043-7
Design of distributed Raman temperature sensing system based on single-mode optical fiber
Ziheng XU, Deming LIU, Hairong LIU(), Qizhen SUN, Zhifeng SUN, Xu ZHANG, Wengang WANG
College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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The distributed optical fiber temperature sensor system based on Raman scattering has developed rapidly since it was invented in 1970s. The optical wavelengths used in most of the distributed temperature optical fiber sensor system based on the Raman scattering are around from 840 to 1330?nm, and the system operates with multimode optical fibers. However, this wavelength range is not suitable for long-distance transmission due to the high attenuation and dispersion of the transmission optical fiber. A novel distributed optical fiber Raman temperature sensor system based on standard single-mode optical fiber is proposed. The system employs the wavelength of 1550?nm as the probe light and the standard communication optical fiber as the sensing medium to increase the sensing distance. This system mainly includes three modules: the probe light transmitting module, the light magnifying and transmission module, and the signal acquisition module.

Keywords optical fiber      distributed temperature sensor      Raman scattering      field-programmable gate array (FPGA)     
Corresponding Authors: LIU Hairong,   
Issue Date: 05 June 2009
 Cite this article:   
Ziheng XU,Deming LIU,Hairong LIU, et al. Design of distributed Raman temperature sensing system based on single-mode optical fiber[J]. Front Optoelec Chin, 2009, 2(2): 215-218.
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Ziheng XU
Deming LIU
Hairong LIU
Qizhen SUN
Zhifeng SUN
Wengang WANG
Fig.1  Spectrum of Raman and Rayleigh scatterings
Fig.2  System construction
Fig.3  Construction of optical filter
Fig.4  Spectrum curve of Raman light and Rayleigh light
Fig.5  Spectrum curve of Stokes light
Fig.6  Spectrum curve of anti-Stokes light
1 Zhang Z X, Kim I S, Wang J F, Feng H Q, Guo N, Yu X D, Liu H L, Wu X B, Oh S, Kim Y. 10?km distributed optical fiber sensors system and application. Proceedings of SPIE , 2001, 4540: 386-390
doi: 10.1117/12.450680
2 Zhang Z X, Liu H L, Guo N. Optimum designs of 30 km distributed optical fiber Raman photon temperature sensors and measurement network. Proceedings of SPIE , 2002, 4920: 268-273
doi: 10.1117/12.481983
3 Odic R M, Jones R I, Tatam R P. Distributed temperature sensor for aeronautic applications. In: Proceedings of OFS . 2002, 459-462
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