基于倾斜布拉格光纤光栅的高灵敏度折射率传感器

doi:10.12066/j.issn.1007-2861.1763

上海大学学报(自然科学版) ›› 2017, Vol. 23 ›› Issue (6): 859-.doi: 10.12066/j.issn.1007-2861.1763

基于倾斜布拉格光纤光栅的高灵敏度折射率传感器

石磊, 刘云启, 宋红亮, 邹芳, 王廷云

上海大学特种光纤与光接入网省部共建重点实验室, 上海 200444

收稿日期:2015-12-21 出版日期:2017-12-30 发布日期:2017-12-30
通讯作者: 刘云启(1971—), 男, 教授, 博士生导师, 博士, 研究方向为光纤通信与光纤传感. E-mail: yqliu@shu.edu.cn
作者简介:刘云启(1971—), 男, 教授, 博士生导师, 博士, 研究方向为光纤通信与光纤传感. E-mail: yqliu@shu.edu.cn
基金资助:
国家自然科学基金资助项目(61377083, 61077065)

High sensitivity refractive index sensor based on tilted fiber Bragg gratings

SHI Lei, LIU Yunqi, SONG Hongliang, ZOU Fang, WANG Tingyun

Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China

Received:2015-12-21 Online:2017-12-30 Published:2017-12-30

摘要/Abstract

摘要：

制备了不同倾斜角度的倾斜布拉格光纤光栅, 用于测量周围环境的折射率. 当环境折射率增加时, 高阶包层模谐振峰会逐渐消失, 即将逐渐消失的高阶包层模谐振峰的波长会随环境折射率的增大而线性增大. 测得的折射率灵敏度在500 nm/RIU以上. 通过选择适当的倾斜角度, 制得的光纤传感器可以满足不同范围的折射率测量.

关键词: 光纤传感器, 环境折射率, 倾斜布拉格光纤光栅

Abstract:

We demonstrate fabrication of tilted fiber Bragg gratings (TFBGs) with different tilt angles for the measurement of surrounding refractive index (SRI). High order
cladding modes has been found to disappear gradually, with their resonance wavelength linearly increasing as SRI increases. The measured index sensitivity is higher than 500 nm/RIU. By optimizing the tilt angle of the grating, the proposed optical fiber sensor can be used for SRI measurements in different index range.

Key words: optical fiber sensor, surrounding refractive index (SRI), tilted fiber Bragg gratings(TFBGs)

石磊, 刘云启, 宋红亮, 邹芳, 王廷云. 基于倾斜布拉格光纤光栅的高灵敏度折射率传感器[J]. 上海大学学报(自然科学版), 2017, 23(6): 859-.

SHI Lei, LIU Yunqi, SONG Hongliang, ZOU Fang, WANG Tingyun. High sensitivity refractive index sensor based on tilted fiber Bragg gratings[J]. Journal of Shanghai University（Natural Science Edition）, 2017, 23(6): 859-.

参考文献

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基于倾斜布拉格光纤光栅的高灵敏度折射率传感器

High sensitivity refractive index sensor based on tilted fiber Bragg gratings

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