2 June 2014 Ultrasensitive refractive index sensor based on elliptic microfibers fabricated by CO2 laser
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915751 (2014) https://doi.org/10.1117/12.2059474
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
A highly-birefringent elliptic microfiber is fabricated by use of the CO2-laser machining and fusion tapering methods. The fiber ellipse can be well controlled with modification of the CO2 laser output power. Both positive and negative sensitivities are observed for the structure to be used in the refractive index sensing application, in contrast to the previously-reported microfiber devices. Moreover, the maximum obtained sensitivity is as high as 195348nm/RIU (refractive index unit) around refractive index of 1.35887, which is one order of magnitude higher than other microfiber counterparts. The temperature-cross sensitivity of 0.007nm/°C is quite low.
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Li-Peng Sun, Li-Peng Sun, Jie Li, Jie Li, Long Jin, Long Jin, Bai-Ou Guan, Bai-Ou Guan, } "Ultrasensitive refractive index sensor based on elliptic microfibers fabricated by CO2 laser", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915751 (2 June 2014); doi: 10.1117/12.2059474; https://doi.org/10.1117/12.2059474
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