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Proceedings Paper

Integrated liquid-filled directional coupler for temperature sensing
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Paper Abstract

A silicon nitride directional coupler filled with toluene is proposed as temperature sensor. This liquid material has a high thermo-optic coefficient, which allows large variations on its refractive index in function of temperature variations. Simulations were performed to obtain the sensor's sensitivities, which measured on the output ports (P2, P3) of the structure are 0:11392= °C and 0:11499= °C, respectively.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963454 (28 September 2015); doi: 10.1117/12.2194450
Show Author Affiliations
Felipe C. Salgado, Federal Univ. of Itajubá (Brazil)
Danilo H. Spadoti, Federal Univ. of Itajubá (Brazil)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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