New temperature sensor using optical fiber containing liquid in cylindrical cavity in cladding

Toshimi Sekito; Hiroaki Horima

doi:10.1117/12.169927

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9 March 1994 New temperature sensor using optical fiber containing liquid in cylindrical cavity in cladding

Toshimi Sekito, Hiroaki Horima

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Proceedings Volume 2070, Fiber Optic and Laser Sensors XI; (1994) https://doi.org/10.1117/12.169927
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

We have fabricated a new type of dual-core fiber with two cores, one of which is made of silica and the other of which is made of a liquid with a higher refractive index than silica injected into a cylindrical cavity with a certain length in a single mode fiber. Thus, we have found a feasibility of a new type of temperature sensor in which the dependence of the refractive index of this liquid on temperature is combined with the optical coupling phenomenon in the conventional dual-core fiber. This paper reports our theoretical and experimental examinations on the feasibility of a dual-core silica fiber with a liquid core as temperature sensors.

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Toshimi Sekito and Hiroaki Horima "New temperature sensor using optical fiber containing liquid in cylindrical cavity in cladding", Proc. SPIE 2070, Fiber Optic and Laser Sensors XI, (9 March 1994); https://doi.org/10.1117/12.169927

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