【摘 要】
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We propose a novel refractive index sensor based on Michelson interferometer by using double-core microfiber.Through the reflection of the end and taper of double-core fiber (DCF),the Michelson interference spectrum is formed.Owing to the structure charac
【机 构】
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School of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China;Zhangjiako
论文部分内容阅读
We propose a novel refractive index sensor based on Michelson interferometer by using double-core microfiber.Through the reflection of the end and taper of double-core fiber (DCF),the Michelson interference spectrum is formed.Owing to the structure characteristic of double-core microfiber,this interferometer can achieve the measurement of re-fractive index (RI) and temperature.The experimental results show that the refractive index sensitivity of the inter-ferometer is 2377.80 nm/RIU at the diameter of the taper waist of 8.76 μm.In the temperature ranges from 30 ℃ to 60 ℃,the temperature sensitivity is 0.07048 nm/℃.This sensor has the advantage of high refractive index sensitivity.
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