Abstract

We describe a novel sensing approach and experimental results from the use of three optical wavelengths to probe temperature-induced optical spectrum modulation of thin-film optical coatings. This approach provides a sensor design with integrated pressure- and temperature-sensing capabilities, active pressure sensitivity correction, and environmental error compensation, all embodied in one simple sensor construction. The miniature sensor design is intended primarily for dynamic pressure measurement in normal- to high-temperature environments.

© 1993 Optical Society of America

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