Title :
Bragg grating-based laser sensors systems with interferometric interrogation and wavelength division multiplexing
Author :
Koo, K.P. ; Kersey, A.D.
Author_Institution :
SFA Inc., Landover, MD, USA
fDate :
7/1/1995 12:00:00 AM
Abstract :
We describe the use of fiber Bragg grating based lasers as sensors. An interferometric detection technique is presented for interrogating laser wavelength shifts due to measurand induced laser cavity strain with high resolution from both single-mode and multimode lasers. The principle of integrating multiple sensors to form an array is demonstrated using a wavelength division multiplexing approach
Keywords :
fibre lasers; fibre optic sensors; laser arrays; light interferometry; measurement by laser beam; sensor fusion; strain sensors; wavelength division multiplexing; array; fiber Bragg grating laser sensors; interferometric detection; laser cavity strain; laser wavelength shifts; multimode lasers; multiple sensor integration; resolution; single-mode lasers; wavelength division multiplexing; Bragg gratings; Erbium-doped fiber lasers; Fiber gratings; Fiber lasers; Laser modes; Optical fiber sensors; Optical fibers; Resonance; Sensor systems; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
