武汉光电论坛第145期

报告题目：光纤传感

Optical Fiber Sensing

时 间：2018年7月5日15:30-17:00

地 点：光电国家研究中心A101

报 告 人：Prof. Perry Shum, 新加坡南洋理工大学

邀 请 人：光电子器件与集成功能实验室

报告人简介：

沈平教授于1995年获得英国伯明翰大学电子与电气工程博士学位。1999年，他加入新加坡南洋理工大学电子与电子工程学院。 自2014年起，他被任命为光纤技术中心主任，并担任多个国际会议的主席、委员会成员和国际顾问。 他是IEEE Photonics Society Singapore Chapter（前身为IEEE LEOS）的创始成员，目前担任OSA新加坡分会的主席。 沈平教授已发表超过500篇期刊和会议论文，研究领域涉及特种光纤以及光纤光器件等，H因子达到38。近年来，他的论文年引用量高达500-800次。沈平教授是国际光学工程学会会士(SPIE Fellow)和美国光学学会会士(OSA Fellow)。

Biography:

Prof Shum received his PhD degree in Electronic and Electrical Engineering from the University of Birmingham, UK, in 1995. In 1999, he joined the School of Electrical and Electronic Engineering, NTU. Since 2014, he has been appointed as the Director of Centre for Optical Fibre Technology and was the chair, committee member and international advisor of many international conferences. He was also the founding member of IEEE Photonics Society Singapore Chapter (formerly IEEE LEOS). He is currently the chairman of OSA Singapore Chapter. Prof Shum has published more than 500 journal and conference papers with his research interests being in the areas of speciality fibres and fibre-based devices. His H-index is 38. In recent few years, his publications have been cited about 500-800 times per year. He is SPIE Fellow and OSA Fellow.

报告摘要：

近年来，光纤器件已经被广泛部署。利用光纤作为传感介质具有诸多优势，其中包括无源操控、质量轻、抗射频干扰和电磁干扰、灵敏度高、尺寸小、耐腐蚀、易于复用和潜在的低成本特性。本报告将介绍几种新型光纤传感器及其应用，其中包括基于光纤布拉格光栅（FBG）、光子晶体光纤（PCF）、特种光纤传感器，以及分布式光纤传感系统。作为天生传感器件的FBG，经巧妙设计可以实现二维（2D）倾斜传感、位移传感、加速度传感和腐蚀传感等功能；同时将介绍基于PCF的倏逝场吸收传感器，PCF诱导的Mach-Zehnder干涉仪和用于温度和折射率传感的Fabry-Perot折射计；最后，基于局部表面等离子体共振（LSPR）效应，将验证附着金纳米颗粒的纳米尺寸光纤尖端在活细胞指数生物传感中的应用。

Abstract:

Optical fiber-based devices have been widely deployed in recent years. There are many advantages of using fiber as a sensor. These include electrically-passive operation, light weight, immunity to radio frequency interference and electromagnetic interference, high sensitivity, compact size, corrosion resistance, easily multiplexing and potentially low cost. Several novel fiber-based sensors and technologies developed are presented here, including fiber Bragg grating (FBG) based sensors, photonic crystal fiber (PCF) based sensors, specialty fiber-based sensors and distributed fiber sensing systems. FBGs as instinctive sensors, are ingeniously designed as two-dimensional (2D) tilt sensors, displacement sensors, accelerometers and corrosion sensors here; PCF based evanescent field absorption sensor, PCF induced Mach-Zehnder interferometer and Fabry-Perot refractometer for temperature and refractive index sensing are presented; based on localized surface Plasmon resonant (LSPR) effect, nano-sized fiber tip with gold nanoparticles are demonstrated for live cell index bio-sensing applications.

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