We propose a chirped Bragg grating interrogator for a uniform Bragg grating sensor. The wavelength of light reflected by the sensing grating is a function of strain. The position within the chirped Bragg gating the light is reflected from is a function of its wavelength. We determine this position by amplitude modulating the light source and measuring the phase of the reflected light and thus determine the value of the strain.
Chirped fiber optic Bragg grating interrogator for a Bragg grating strain sensor
2002-01-01
169280 byte
Conference paper
Electronic Resource
English
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