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Proceedings Paper

Refractive index measurement by using multimode interference
Author(s): Y. X. Jin; C. C. Chan; Y. Zhao; X. Y. Dong
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Paper Abstract

A fiber-optic refractometer based on the multimode interference in the singlemode-multimode-singlemode fiber structure is demonstrated. The refractive index dependence of the shift of re-imaging resonant wavelength of the proposed sensor is investigated. It shows that the proposed sensor has a measurement resolution of 5.4×10-5 refractive index unit (RIU) for the changes of refractive indices from 1.336 to 1.372. The proposed sensor has a great potential for biological and chemical applications.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77535F (17 May 2011); doi: 10.1117/12.886092
Show Author Affiliations
Y. X. Jin, China Jiliang Univ. (China)
C. C. Chan, Nanyang Technological Univ. (Singapore)
Y. Zhao, China Jiliang Univ. (China)
X. Y. Dong, China Jiliang Univ. (China)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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