光通信技术2019，Vol.43Issue(8)：32-34,3.DOI:10.13921/j.cnki.issn1002-5561.2019.08.008
基于细芯光纤结构的表面等离子体共振折射率传感器
Surface plasmon resonance refractive index sensor based on thin-core optical fiber structure
摘要
Abstract
The common optical fiber processing methods of surface Plasmon resonanee(SPR) sensors can easily make the optical fiber structure fragile, which leads to the decline of mechanical properties. A refractive index sensor based on thin core fiber (TCF) surface plasmon resonance SPR principle is proposed. Multimode optical fiber-thin core optical fiber-multimode optical fiber (MMF-TCF-MMF) structure with uniformly coated gold(Au) film on one side is used as sensing unit, and the refractive index sensor can reach 3045.69 nm/RIU attenuation Valley width sensitivity and 48.09 dB/RIU energy loss sensitivity in the range of 1.34~1.3797, and 112.21 nm/RIU SPR peak wavelength sensitivity and -86.27 dB/RIU SPR peak wavelength sensitivity in the range of 1.34~1.3797. PR peak sensitivity. The experimental results show that compared with traditional SPR sensors, the sensor is easy to fabricate and has high mechanical stability and sensitivity.关键词
表面等离子体共振/细芯光纤/折射率光纤传感器Key words
SPR/ TCF/ RI optical fiber sensors分类
信息技术与安全科学引用本文复制引用
王雨,韩飞,郎婷婷,赵春柳*..基于细芯光纤结构的表面等离子体共振折射率传感器[J].光通信技术,2019,43(8):32-34,3.基金项目
国家重点研发专项(批准号:2017YFC0805905)资助. （批准号:2017YFC0805905）
