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Load-insensitive temperature sensor based on azobenzene-chloroform-solution-filled microstructured optical fiber

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Abstract

A solid-core microstructured optical fiber is infiltrated with the Dispersed Yellow 7 and chloroform mixture solution, resulting in the appearance of several transmission dips with different temperature and axial load responses. The temperature- and load-dependent spectral characteristics of these dips have been investigated and the experimental results indicate that they are pretty temperature-sensitive, but insensitive to the variation of applied axial load. Such a compact fiber-optic device with electric perturbation immunity could be employed for load-insensitive temperature sensing with high sensitivity.

© 2013 Optical Society of America

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