Title :
A novel wavelength detection technique for fiber Bragg grating sensors
Author :
Gong, J.M. ; MacAlpine, J.M.K. ; Chan, C.C. ; Jin, W. ; Zhang, M. ; Liao, Y.B.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China
fDate :
5/1/2002 12:00:00 AM
Abstract :
This letter reports a minimum variance shift technique for wavelength detection in fiber Bragg grating (FBG) sensors. The technique has been demonstrated to offer high detection accuracy even when the spectrum of the FBG is in partial overlap with a neighboring FBG within a wavelength division multiplexed sensor array.
Keywords :
Bragg gratings; fibre optic sensors; strain sensors; wavelength division multiplexing; Gaussian spectral shape; fiber Bragg grating sensors; high detection accuracy; minimum variance shift technique; optical spectrum analyzer; spectral tails; wavelength detection; wavelength division multiplexed sensor array; Bragg gratings; Capacitive sensors; Fiber gratings; Optical fiber sensors; Sensor arrays; Sensor systems; Shape measurement; Temperature sensors; Wavelength division multiplexing; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
