材料科学
折射率
灵敏度(控制系统)
芯(光纤)
纤维
光纤
光学
光纤传感器
波长
光电子学
复合材料
电子工程
物理
工程类
作者
Zhiqi Lu,Changning Liu,Jie Ren,Li Chen,Chi Li,Wei Zhou
标识
DOI:10.1088/1361-6501/accdf7
摘要
Abstract This study fabricated an ultra-high refractive index (RI) sensor based on tapered no-core fiber (NCF) involving a simple inexpensive process. A splice section of NCF in the middle of single mode fiber was tapered to small diameters. The sensor was sensitive to the surrounding RI with a large measurement range of 1.3330–1.4437. The RI sensitivity differed with varying wavelengths, with a value of 41 916 nm/RIU at approximately 1550 nm, for the RI ranges of 1.4407–1.4437. It yielded a low temperature sensitivity of 8 pm °C −1 , which indicates an ultra-low temperature cross-sensitivity. The proposed fiber optic RI sensor can be used in many fields such as medicine and biochemical applications.
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