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Fiber Optical Chemical Sensors Rated for 800°C Operation

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Abstract

A high-temperature fiber optical hydrogen sensor is demonstrated. The sensor is based on single-crystal sapphire fiber coated with nanostructured Pd-doped TiO2 thin film. The sensitivity of the sensor was evaluated for hydrogen concentrations varying from 0.02 % to 3% at temperature up to 800°C.

© 2015 Optical Society of America

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