Title :
Raman amplifier based long-distance, remote FBG strain sensor with EDF broadband source recycling residual Raman pump
Author :
Lee, J.H. ; Han, Y.-G. ; Chang, Y.M. ; Lee, S.B.
Author_Institution :
Photonics Res. Center, Korea Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
A novel and simple Raman amplifier based long-distance fibre Bragg grating (FBG) sensing system without any additional broadband light source is demonstrated. With the simplified system configuration recycling residual Raman pump power for generation of amplified spontaneous emission in an erbium-doped fibre (EDF), the high quality of remote strain sensing operation at a location of 50 km is achieved.
Keywords :
Bragg gratings; Raman lasers; erbium; fibre optic sensors; optical fibre amplifiers; spontaneous emission; strain sensors; FBG strain sensor; Raman amplifier based long-distance fibre Bragg grating; broadband light source; erbium-doped fibre; remote strain sensing operation; spontaneous emission; system configuration recycling residual Raman pump power;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20045431
