光子晶体光纤
材料科学
芯(光纤)
曲率
光学
纤维
光纤
光子晶体
微结构光纤
灵敏度(控制系统)
塑料光纤
光电子学
大气温度范围
渐变折射率纤维
光子学
硬包层石英光纤
光纤传感器
复合材料
物理
电子工程
几何学
数学
气象学
工程类
作者
Junbo Lou,Yonghui Yang,Qiang Qu,Shuguang Li
出处
期刊:Measurement
[Elsevier]
日期:2024-04-13
卷期号:232: 114690-114690
被引量:2
标识
DOI:10.1016/j.measurement.2024.114690
摘要
Two- and three-core photonic crystal fibers are prepared by using the same photonic crystal fiber preform structure. Not only the fiber diameter is reduced to standard size of 125μm, but also the core diameter is reduced to below 4μm. A curvature and temperature sensing system is built, and the curvature and temperature sensing performance of the three-core optical fiber is tested. When the length of three-core optical fiber is 150 mm, the measured curvature sensitivity is −7.27069 nm/m−1 in the range of 0 to 0.990 m−1, and the temperature sensitivity is −34 pm/∘C during the temperature reduction from 75 to 45 °C. When the length of three-core photonic crystal fiber is 68 mm, the curvature sensitivity and temperature sensitivity are 2.42419 nm/m−1 and −7 pm/∘C, respectively. In a small range of temperature, the sensor is insensitive to temperature, and the cross interference of temperature to curvature is very small.
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