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Proceedings Paper

Eccentric core optical fiber for distributed sensing
Author(s): Jianxia Liu; Libo Yuan
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Paper Abstract

An eccentric core optical fiber (ECOF) for distributed evanescent field sensing is proposed. The finite element method (FEM) is utilized to analyze characteristics of the ECOF, including the fractional power of coating and core. A strong evanescent field exits in the coating of the ECOF due to a small distance between the core and the coating. The sensitivity or resolution of this kind sensing fiber is analyzed. The sensitivity is ~0.25dB/RIU or resolution of 4×10−3 in the range of 1.4-1.42. The sensing length is in the range of 16m-160m.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91574G (2 June 2014); doi: 10.1117/12.2058928
Show Author Affiliations
Jianxia Liu, Harbin Engineering Univ. (China)
Libo Yuan, Harbin Engineering Univ. (China)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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