基于微纳光纤共振环的折射率传感

J4 ›› 2018, Vol. 35 ›› Issue (5): 631-635.

基于微纳光纤共振环的折射率传感

章昕怡, 钱禹豪，张祖兴

南京邮电大学电子与光学工程学院先进光子技术实验室，江苏南京 210023

收稿日期:2017-08-02 修回日期:2017-10-27 出版日期:2018-09-28 发布日期:2018-09-29
通讯作者: 张祖兴（1975-），江西吉安人，博士，教授，从事激光技术、光纤传感和光信号处理方面的研究。 E-mail:zxzhang@njupt.edu.cn
作者简介:章昕怡（1995-），女，江苏扬州人，从事微纳光纤及应用方面的研究。
基金资助:
upported by Natural Science Foundation of Jiangsu Province(江苏省自然科学基金，BK20161521)，Distinguished Professor Project of Jiangsu (江苏省特聘教授资助项目，RK002STP14001)，Six Talent Peaks Project in Jiangsu Province（江苏省“六大人才高峰”资助项目，2015-XCL-023），Talent Introduction Project of Nanjing University of Posts and Telecommunications（南京邮电大学人才引进项目资助，NY214002，NY215002）

Refractive index sensing based on micro-nano fiber resonant ring

ZHANG Xinyi, QIAN Yuhao, ZHANG Zuxing

Advanced Photonic Technology Laboratory, College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China

Received:2017-08-02 Revised:2017-10-27 Published:2018-09-28 Online:2018-09-29

摘要/Abstract

摘要：

制备了一种LOOP型微纳光纤共振环，分析了影响共振环形状及其特性的相关因素，并将其应用于折射率传感实验。结果表明该微纳光纤共振环的自由光谱范围与环的大小成反比，随着外界折射率的增大，该微纳光纤共振环的光谱呈现出整体向长波长方向漂移的趋势，即产生了红移现象，且波长红移与折射率之间呈现一种线性关系，实验测得该微纳光纤共振环的折射率敏感度为1427.86 nm/RIU。所设计微纳光纤共振环折射率传感结构制作方法简单、可集成，具有较高敏感性。

关键词: 纤维与波导光学；微纳光纤；共振环；折射率传感

Abstract:

A LOOP-type micro-nano fiber resonant ring is fabricated. The factors influencing the shape and characteristics of the resonant ring are analyzed, and it is applied to the refractive index sensing experiment. Results show that the free spectral range of the micro-nano fiber resonant ring is inversely proportional to the size of the ring. With increasing of the external refractive index, spectrum of the micro-nano fiber resonant ring shows a tendency to shift to long wavelength. That is to say, the red shift phenomenon occurs. There is a linear relationship between the red shift of the wavelength and the refractive index, and the refractive index sensitivity of 1427.86 nm/RIU is achieved. The designed refractive index sensing structure based on micro-nano fiber resonant ring is simple, integrated and sensitive.

Key words: fiber and waveguide optics; micro-nano fiber; resonant ring; refractive index sensing

中图分类号:

TN29

章昕怡钱禹豪张祖兴. 基于微纳光纤共振环的折射率传感[J]. J4, 2018, 35(5): 631-635.

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