Interrogation of fiber grating sensor arrays with a wavelength-swept fiber laser

Seok Hyun Yun, D. J. Richardson, Byoung Yoon Kim
1998 Optics Letters  
We demonstrate a novel application of a wavelength-swept fiber laser to fiber Bragg grating sensor-array interrogation. The laser provides high signal powers of .3 mW with ,0.1-nm spectral resolution over a 28-nm wavelength span. Using time-interval counting, we demonstrate static -dynamic strain measurements with a resolution of 0.47 me rms at a sampling rate of 250 Hz.
doi:10.1364/ol.23.000843 pmid:18087360 fatcat:hqgp3hw5tngrtnri3mwerj6a6y