基于锥形四芯光纤的高灵敏度折射率传感器
High Sensitivity Refractive Index Sensor Based on Tapered Four-Core Fiber
高雅 1甄胜来 1金姝 1左铖 1赵斯阳 1李鹤飞 1俞本立1
作者信息
- 1. 安徽大学光电信息获取与控制教育部重点实验室,安徽 合肥 230601;安徽大学信息材料与智能感知安徽省实验室,安徽 合肥 230601
- 折叠
摘要
提出了一种基于锥形四芯光纤的折射率传感器.四芯光纤两端熔接了多模光纤,并在氢氧火焰下逐渐拉细.通过模拟传感部分的光场证明了锥形四芯光纤会产生更强的干涉效应.实验结果表明,该传感器的最大折射率灵敏度达到了298.307 nm/RIU,线性度为99.806%,同时其对温度变化不敏感,有效地避免了温度与折射率之间的交叉敏感.该传感器具有体积小、灵敏度高的特点,在生物和化学传感领域具有潜在的应用前景.
Abstract
A refractive index sensor based on tapered four-core fiber is proposed in this paper.With the aid of a hydrogen-oxygen flame,the four-core fiber was progressively tapered between two segments of a multimode fiber.By simulating the light field of the sensing part,we prove that the tapered four-core fiber will produce stronger interference effect.Experimental results show that the sensor has a maximum refractive index sensitivity of 298.307 nm/RIU and a linearity of 99.806%.The sensor is also insensitive to temperature,which effectively avoids the cross-sensitivity effect between temperature and refractive index.With its small size and high sensitivity,the sensor is expected to have potential applications in biological and chemical sensing.
关键词
光纤传感器/折射率/锥形四芯光纤/温度Key words
optical fiber sensor/refractive index/tapered four-core fiber/temperature引用本文复制引用
出版年
2024
NETL
NSTL
万方数据