Title :
Demonstration of Brillouin Distributed Discrimination of Strain and Temperature Using a Polarization-Maintaining Optical Fiber
Author :
Zou, Weiwen ; He, Zuyuan ; Hotate, Kazuo
Author_Institution :
Dept. of Electr. Eng. & Inf. Syst., Univ. of Tokyo, Tokyo, Japan
fDate :
4/15/2010 12:00:00 AM
Abstract :
Distributed discrimination of strain and temperature is demonstrated by localizing both the stimulated Brillouin scattering (SBS) and the dynamic acoustic grating generated in the SBS process in a polarization-maintaining fiber with a correlation-domain continuous-wave technique. A 12- ???? strain resolution and 0.3??C temperature resolution together with a 10-cm spatial resolution are experimentally validated.
Keywords :
diffraction gratings; fibre optic sensors; optical fibre polarisation; stimulated Brillouin scattering; Brillouin distributed discrimination; correlation-domain continuous-wave technique; dynamic acoustic grating; polarization-maintaining optical fiber; spatial resolution; stimulated Brillouin scattering; strain resolution; temperature resolution; Brillouin scattering; dynamic grating; fiber-optic sensors; polarization-maintaining fiber (PMF); strain; temperature;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2041922
