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Proceedings Paper

Simultaneous measurement of temperature and refractive index based on microfiber knot resonator integrated in an abrupt taper Mach-Zehnder interferometer
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Paper Abstract

A microfiber knot resonator integrated in an abrupt taper-based Mach-Zehnder interferometer was used for simultaneous measurement of temperature and refractive index. This compact structure was fabricated using only CO2 laser processing. The transmission spectrum is the combination of the microfiber knot resonator and the Mach-Zehnder interferometer responses. The two different components of the transmission spectrum (the microfiber knot resonator and the Mach-Zehnder interferometer components) present different sensitivities when subjected to physical or chemical parameters. A characterization in temperature, refractive index, and sodium chloride (NaCl) concentration was performed. A simple matrix method was used for simultaneous measurement of temperature and refractive index.

Paper Details

Date Published: 22 August 2017
PDF: 4 pages
Proc. SPIE 10453, Third International Conference on Applications of Optics and Photonics, 1045324 (22 August 2017); doi: 10.1117/12.2275813
Show Author Affiliations
André D. Gomes, INESC TEC (Portugal)
Univ. of Porto (Portugal)
Orlando Frazão, INESC TEC (Portugal)
Univ. of Porto (Portugal)


Published in SPIE Proceedings Vol. 10453:
Third International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. M. Martins Costa, Editor(s)

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