Title :
Brillouin-based distributed fibre temperature sensor at 1.53 /spl mu/m using Raman amplification
Author :
Cho, Y.T. ; Newson, T.P.
Author_Institution :
Optoelectronics Res. Centre, Southampton Univ., UK
Abstract :
In this paper, we propose a technique for increasing the sensing range of the Brillouin-based distributed temperature fibre sensor (BDTS) by using Raman amplification of the Brillouin backscatter signal. This method operates with a continuous-wave (CW) pump at 1450 nm which amplifies the probe pulse thereby increasing its energy further down the sensing fibre.
Keywords :
Brillouin spectra; Raman spectra; distributed sensors; fibre optic sensors; temperature sensors; 1.53 micron; Brillouin-based distributed fibre temperature sensor; CW pump; Raman amplification; Backscatter; Brillouin scattering; Fiber lasers; Gratings; Optical fiber cables; Optical fiber couplers; Optical fiber sensors; Pump lasers; Stimulated emission; Temperature sensors;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000563
