期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 30, 期 8, 页码 1168-1172出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2011.2170814
关键词
Temperature sensor; fiber laser; Raman amplification; Fabry-Perot interferometer; microstructured fiber; Rayleigh scattering
资金
- Spanish Government [TEC2010-20224-C02-01]
- European COST Action [TD1001]
In the present work, a simple temperature fiber laser sensor configuration is proposed. The temperature fiber laser sensor is based in the combination of a Fabry-Perot hybrid cavity and a random mirror. The Fabry-Perot hybrid cavity is fabricated by splicing a single mode fiber with a small piece of suspended-core fiber. The random mirror is created by multiple Rayleigh scattering events running along the dispersion compensation fiber, as a direct consequence of Raman gain in this fiber. In the proposed configuration, the Fabry-Perot cavity presents simultaneously a double function: laser reflective mirror and temperature sensing cavity. The proposed temperature fiber laser sensor presents maximum output power of similar to 4 mW in a 15nm wavelength range while providing a temperature sensibility of similar to 6 pm/degrees C, in a 200 degrees C temperature range.
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