期刊
APPLIED PHYSICS LETTERS
卷 94, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3115029
关键词
fibre optic sensors; Mach-Zehnder interferometers; refractive index measurement; temperature measurement
资金
- Natural Sciences and Engineering Research Council of Canada [NSERC DG312421-2008]
- Canada Research Chairs Program
- Canada Foundation for Innovation
- Province of Newfoundland and Labrador
- Memorial University of Newfoundland
An approach to achieve simultaneous measurement of refractive index and temperature is proposed by using a Mach-Zehnder interferometer realized on tapered single-mode optical fiber. The attenuation peak wavelength of the interference with specific order in the transmission spectrum shifts with changes in the environmental refractive index and temperature. By utilizing S-band and C/L-band light sources, simultaneous discrimination of refractive index and temperature with the tapered fiber Mach-Zehnder interferometer is demonstrated with the corresponding sensitivities of -23.188 nm/RIU (refractive index unit) and 0.071 nm/ degrees C, and -26.087 nm/RIU (blueshift) and 0.077 nm/degrees C (redshift) for the interference orders of 169 and 144, respectively.
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