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Implementation of Stimulated Brillouin Scattering in Optical Fiber Sensor for Improved Stability by Using Neuro-Fuzzy Theory  

Hwang, Kyoung-Jun (원광대 공대 전자재료공학과)
Yeom, Keong-Tae (원광대 공대 전자재료공학과)
Kim, Yong-Kab (원광대 공대 전기전자 및 정보공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.57, no.1, 2008 , pp. 92-97 More about this Journal
Abstract
This is a research to apply 1310nm single-mode optical fiber to a temperature sensor. The existing study of optical fiber sensor is complicated because it was made with various equipment. To vary scattering, the variation of optical frequency is measured by using Bragg(lattice) or pulse generator and also bulk system is created by YAG laser but there were some difficulties creating experimental environment and it was a problem that the stability of measured data was low. The temperature sensor system using the suggested sBs(stimulated Brillouin scattering:sBs) from this research is much more simplified straight-line system. To improve the trust and accuracy of noises from optical frequency and unclear results, it was analysed by using Neuro-Fuzzy algorithm. we tried to get more correct data than existing system. sBs measure that optical frequency changed due to the variation of temperature. The analyzed change rate of outcome by Fuzzy theory is 1.1 MHz.
Keywords
Scattering; stimulated Brillouin; Fiber optics sensors; Optical data processing;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 0
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