基于Otto结构的光纤表面等离子体共振折射率传感器  

Surface plasmon resonance optical fiber refractive index sensor based on Otto configuration

作　　者：王小明[1] 赵春柳[1] 王雁茹[1] 金尚忠[1] 

机构地区：[1]中国计量学院光电子技术研究所,杭州310018

出　　处：《光通信技术》2015年第12期35-37,共3页Optical Communication Technology

基　　金：浙江省国际科技合作项目(2013C24018)资助;国家自然科学基金(61108058)资助

摘　　要：提出一种基于Otto结构的光纤表面等离子体共振折射率传感器方案。传感器传感头由一端面镀有金膜的单模光纤、侧边刨磨光纤和空气间隙组成。在研究传感器横截面电场强度分布后,着重研究了表面等离子体共振波长随着折射率变化光谱图并分析了两者的关系,最后得出该传感器灵敏度变化区间为1517.432~6656nm/RIU,分辨率至少可达到3.525×10^(-6) RIU。The paper puts forward a kind of optical fiber surface plasmon resonance refractive index based on the structure of Otto sensor solutions. Sensor head by a single-mode fiber end face with gold plated film, plane grinding side of fiber and air gap. Sensor based on the study of cross section after the electric field intensity distribution. The paper studies the surface plasmon resonance wavelength with the refractive index change spectrogram and analyzes the relationship of the two, finally it is concluded that the sensor sensitivity change range of 1517.432 - 6656nm/RIU, resolution can reach 3.525×10^-6 RIU at least.

关 键 词：光纤传感器 表面等离子体 折射率测量 光纤应用 

分 类 号：TN212[电子电信—物理电子学]