18 June 2014 A multicore optical fiber for distributed sensing
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Abstract
With advancements in optical fiber technology, the incorporation of multiple sensing functionalities within a single fiber structure opens the possibility to deploy dielectric, fully distributed, long-length optical sensors in an extremely small cross section. To illustrate the concept, we designed and manufactured a multicore optical fiber with three graded-index (GI) multimode (MM) cores and one single mode (SM) core. The fiber was coated with both a silicone primary layer and an ETFE buffer for high temperature applications. The fiber properties such as geometry, crosstalk and attenuation are described. A method for coupling the signal from the individual cores into separate optical fibers is also presented.
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Xiaoguang Sun, Xiaoguang Sun, Jie Li, Jie Li, David T. Burgess, David T. Burgess, Mike Hines, Mike Hines, Beyuan Zhu, Beyuan Zhu, } "A multicore optical fiber for distributed sensing", Proc. SPIE 9098, Fiber Optic Sensors and Applications XI, 90980W (18 June 2014); doi: 10.1117/12.2050130; https://doi.org/10.1117/12.2050130
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