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Proceedings Paper

Microbent optical fiber for refractive index measurement
Author(s): Thomas S. Lee; P. Sureshkumar; K. Geetha; Periasamy Radhakrishnan; C. P. G. Vallabhan; V. P. N. Nampoori
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Paper Abstract

Permanently microbent fibers are potential candidates for chemical sensing 1. They behave more or less like an unclad optical fiber in many respects and the basic mechanism involved in chemical sensing application is the evanescent wave absorption. In this manuscript we propose its usage for refractive index measurement of solutions. The sensing configuration employed here is the dark field detection configuration which essentially involves the detection of cladding modes generated in and near the microbent region.

Paper Details

Date Published: 9 September 2002
PDF: 3 pages
Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); doi: 10.1117/12.481976
Show Author Affiliations
Thomas S. Lee, International School of Photonics/Cochin Univ. of Science and Technology (India)
P. Sureshkumar, Cochin Univ. of Science and Technology (India)
K. Geetha, International School of Photonics/Cochin Univ. of Science and Technology (India)
Periasamy Radhakrishnan, International School of Photonics/Cochin Univ. of Science and Technology (India)
C. P. G. Vallabhan, International School of Photonics/Cochin Univ. of Science and Technology (India)
V. P. N. Nampoori, International School of Photonics/Cochin Univ. of Science and Technology (India)


Published in SPIE Proceedings Vol. 4920:
Advanced Sensor Systems and Applications
Yun-Jiang Rao; Julian D. C. Jones; Hiroshi Naruse; Robert I. Chen, Editor(s)

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