应用科学学报 ›› 2017, Vol. 35 ›› Issue (4): 460-468.doi: 10.3969/j.issn.0255-8297.2017.04.003

• 光纤传感技术 • 上一篇    下一篇

悬挂芯光子微单元-灵活高效的光纤内嵌实验室

汪超1, 靳伟2,3, 何海律2,3, 杨帆2,3, 齐云2,3   

  1. 1. 武汉大学 电气工程学院, 武汉 430072;
    2. 香港理工大学深圳研究院 电机工程学系, 广东 深圳 518057;
    3. 香港理工大学 电机工程学系, 香港 999077
  • 收稿日期:2017-05-10 出版日期:2017-07-30 发布日期:2017-07-30
  • 通信作者: 靳伟,教授,博导,研究方向:微结构光纤传感技术等,E-mail:eewjin@whu.edu.cn E-mail:eewjin@whu.edu.cn
  • 基金资助:

    国家自然科学基金(No.61405125,No.61290313,No.61535004);中国博士后基金(No.2015M572351,No.2016T90796);中央高校基本科研业务费资助

Suspended-Core Photonic Microcells-Flexible and Highly Efficient Lab-in-Fiber Platforms

WANG Chao1, JIN Wei2,3, HO Hoi-lut2,3, YANG Fan2,3, QI Yun2,3   

  1. 1. School of Electrical Engineering, Wuhan University, Wuhan 430072, China;
    2. Department of Electrical Engineering, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, Guangdong Province, China;
    3. Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
  • Received:2017-05-10 Online:2017-07-30 Published:2017-07-30

摘要:

介绍一类在商用光子晶体光纤基础上制备的悬挂芯光子微单元.该微单元能通过较简单的选择性膨胀技术实现具有大倏逝场、高双折射、多芯等功能的多种悬挂芯结构,并能与单模光纤连接形成低损耗光纤在线单元.微单元内部基于倏逝场的光与物质相互作用区域与外部环境隔离,整体易于操作,是适用于光纤实验室研究的灵活平台.分析了几种典型悬挂芯光子微单元的消逝场、损耗、双折射等特性;利用微单元的一些特性开展应用研究,包括基于折射率探测原理的微单元气体压力和液体温度传感器、基于微单元纤芯微悬臂梁的加速度传感器、微单元光栅器件等.这些研究为推进光纤实验室技术的发展和应用提供了新思路.

关键词: 光纤传感器, 光纤实验室, 光子微单元, 悬挂芯光纤, 光纤器件

Abstract:

We report a novel type of optical fiber in-line structures named suspendedcore photonic microcells. These microcells are fabricated by inflating selected air-columns in a commercial photonic crystal fiber, and can be made to have different suspendedcore structures. The microcells exhibit a range of novel optical properties such as large evanescent-field in air, high birefringence, and multiple waveguiding cores. The suspended core and the surrounding evanescent-field are isolated from external environment, and can act as robust platforms for light-matter interaction inside the microcells. The microcells can be connected to standard fiber systems with low loss. They are efficient platforms for lab-in-fiber researches. Properties of the microcells are discussed and examples of potential applications presented. The research reported here offers a new way for the development and application of lab-in-fiber technologies.

Key words: optical fiber sensors, fiber devices, lab-in-fiber, photonic microcells, suspended-core fibers

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