Title :
Fiber-optic Brillouin distributed discrimination of strain and temperature with 11-cm spatial resolution using correlation-based continuous-wave technique
Author :
Zou, Weiwen ; He, Zuyuan ; Hotate, Kazuo
Author_Institution :
Dept. of Electron. Eng., Univ. of Tokyo, Tokyo
Abstract :
11-cm spatial-resolution distributed discrimination of strain and temperature is realized by measuring the Brillouin frequency shift and the birefringence from monitoring the dynamic grating spectrum in a polarization-maintaining fiber. The distributed discriminative errors are estimated as low as 12 muepsiv for strain and 0.3degC for temperature, respectively.
Keywords :
birefringence; internal stresses; optical fibre polarisation; Brillouin frequency shift; birefringence; correlation-based continuous-wave technique; dynamic grating spectrum; fiber-optic Brillouin distributed discrimination; strain discrimination; temperature discrimination; Birefringence; Brillouin scattering; Capacitive sensors; Erbium-doped fiber amplifier; Frequency measurement; Frequency modulation; Optical fiber polarization; Spatial resolution; Strain measurement; Temperature;
Conference_Titel :
Optical Communication, 2008. ECOC 2008. 34th European Conference on
Conference_Location :
Brussels
Print_ISBN :
978-1-4244-2227-2
Electronic_ISBN :
978-1-4244-2228-9
DOI :
10.1109/ECOC.2008.4729337
