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A passive wavelength demodulation system for guided-wave Bragg grating sensors

IEEE Photonics Technology Letters · 1992 · Vol. 4(5) · pp. 516–518

Serge Melle✉(University of Toronto)K. Liu(University of Toronto)R. M. Measures(University of Toronto)

Abstract

A novel, passive, and self-referencing wavelength detection system (WDS) that measures the wavelength of the narrowband back-reflected spectrum of guided-wave Bragg gratings is described. This letter also reports on the use of such a detection system with fiber-optic Bragg gratings used as absolute strain sensors. The wavelength detection system demonstrated a 1% strain resolution of the total strain measurement range.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>

Advanced Fiber Optic Sensors Photonic and Optical Devices Mechanical and Optical ResonatorsFiber Bragg gratingDemodulationNarrowbandWavelengthOpticsMaterials sciencePhysicsOptoelectronicsComputer scienceTelecommunications

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