Chinese Optics Letters, 2012, 10 (7): 072901, Published Online: Mar. 13, 2012
Application of high-precision temperature-controlled FBG filter and light source self-calibration technique in the BOTDR sensor system 
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290.5830 Scattering, Brillouin 060.2370 Fiber optics sensors 280.4788 Optical sensing and sensors 060.3735 Fiber Bragg gratings
Abstract
A high-precision temperature-controlled narrow band-stop fiber Bragg grating (FBG) filter and light source self-calibration technique are proposed for application in the Brillouin optical time domain reflectometer (BOTDR) sensor system. With the proposed application, the BOTDR sensor system maintains good long-term stability and temperature precision through the reduction of the center wavelength drift in the FBG filters and corresponding decrease in the changes in light intensity. The experiment result shows that temperature precision of 1°C and temperature stability of 0.7°C can be achieved in a temperature sensor over a range of 8 km.
References
Jiacheng Hu, Fuchang Chen, Chengtao Zhang, Zunqi Lin. Application of high-precision temperature-controlled FBG filter and light source self-calibration technique in the BOTDR sensor system[J]. Chinese Optics Letters, 2012, 10(7): 072901.
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