2 June 2014 Eccentric core optical fiber for distributed sensing
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91574G (2014) https://doi.org/10.1117/12.2058928
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
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.
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Jianxia Liu, Libo Yuan, "Eccentric core optical fiber for distributed sensing", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91574G (2 June 2014); doi: 10.1117/12.2058928; https://doi.org/10.1117/12.2058928
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