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Article

Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements

by 1,* and 1,2
1
Department of Engineering Physics, Polytechnique Montréal, P.O. Box 6079, Station Centre-ville, Montréal, QC H3T 1J4, Canada
2
Department of Electrical Engineering, Polytechnique Montréal, P.O. Box 6079, Station Centre-ville, Montréal, QC H3T 1J4, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 26 November 2015 / Revised: 6 January 2016 / Accepted: 6 January 2016 / Published: 9 January 2016
(This article belongs to the Section Physical Sensors)
We propose and theoretically demonstrate a bottle resonator sensor with a nanoscale altitude and with alength several of hundreds of microns made on the top of the fiber with a radius of tens microns for refractive index and temperature sensor applications. The whispering gallery modes (WGMs) in the resonators can be excited with a taper fiber placed on the top of the resonator. These sensors can be considered as an alternative to fiber Bragg grating (FBG) sensors.The sensitivity of TM-polarized modes is higher than the sensitivity of the TE-polarized modes, but these values are comparable and both polarizations are suitable for sensor applications. The sensitivity ~150 (nm/RIU) can be reached with abottle resonator on the fiber with the radius 10 μm. It can be improved with theuse of a fiber with a smaller radius. The temperature sensitivity is found to be ~10 pm/K. The temperature sensitivity can decrease ~10% for a fiber with a radius rco = 10 μm instead of a fiber with a radius rco = 100 μm. These sensors have sensitivities comparable to FBG sensors. A bottle resonator sensor with a nanoscale altitude made on the top of the fiber can be easily integrated in any fiber scheme. View Full-Text
Keywords: refractive index sensor; temperature sensor; bottle resonator refractive index sensor; temperature sensor; bottle resonator
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MDPI and ACS Style

Nemova, G.; Kashyap, R. Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements. Sensors 2016, 16, 87. https://0-doi-org.brum.beds.ac.uk/10.3390/s16010087

AMA Style

Nemova G, Kashyap R. Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements. Sensors. 2016; 16(1):87. https://0-doi-org.brum.beds.ac.uk/10.3390/s16010087

Chicago/Turabian Style

Nemova, Galina, and Raman Kashyap. 2016. "Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements" Sensors 16, no. 1: 87. https://0-doi-org.brum.beds.ac.uk/10.3390/s16010087

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