武汉光电论坛第119期

报告题目：双频干涉型光纤传感技术

Dual frequency interferometric fiber-optic sensing technology

时 间：2017年5月11日10:00-12:00

地 点：光电国家实验室A101

报 告 人：关柏鸥 教授，暨南大学

邀 请 人：光电子器件与集成功能实验室

报告人简介：

关柏鸥，1972年出生，国家杰出青年科学基金获得者，国家“万人计划”科技创新领军人才。本科毕业于四川联合大学（现四川大学），在南开大学获得硕士和博士学位，在香港理工大学做博士后。现任暨南大学光子技术研究院院长、校学术委员会副主任委员、广东省光纤传感与通信技术重点实验室主任。主要从事光纤器件、光纤传感技术、生物光子学、微波光子学方面的研究。主持科研项目20余项，其中国家自然科学基金重点项目2项。发表SCI收录论文160余篇，SCI他引1600余次。多次受邀在IEEE J. Sel. Top. Quantum Electron.和IEEE J. Lightwave Technol.等期刊上发表特邀论文，在国际会议上做邀请报告30余次，荣获欧洲光纤传感器会议最佳论文奖。曾担任第十届国际光通信与网络会议大会主席、第四届国际特种光纤会议大会主席、第二届亚太光学传感器会议大会共主席、第五届亚太微波光子学会议TPC共主席。现为国际光纤传感器会议TPC成员、Photonic Sensors编委、Chinese Optics Letters专题编辑。

Biography:

Bai-Ou Guan received the B.Sc. degree in applied physics from Sichuan University, Chengdu, in 1994, and the M.Sc. and Ph.D. degrees in optics from Nankai University, Tianjin, in 1997 and 2000, respectively. From 2000 to 2005, he was with the Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, first as a Research Associate, and then as a Postdoctoral Research Fellow. From 2005 to 2009, he was with School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian, as a Full Professor. In 2009, he joined Jinan University, Guangzhou, where he founded the Institute of Photonics Technology. His current research interests include fiber optic devices and technologies, optical fiber sensors, biomedical photonic sensing and imaging, and microwave photonics. He has authored and coauthored more than 160 papers in the peer-reviewed international journals and presented 60 invited talks at international and national conferences. He received the Distinguished Young Scientist Grant from Natural Science Foundation of China (NSFC) in 2012. He is a member of IEEE and OSA, and has served as General Chair/Co-Chair, Technical Program Committee or Subcommittee Chair/Co-Chair for over 10 international conferences.

报告摘要：

光纤传感器以光波为载体、以光纤为媒介实现对被测信息的感知和传输，具有抗电磁干扰、信号传输距离远、现场无需供电等优点，在国防和民用诸多领域得到了广泛应用。本报告将介绍一种新型光纤传感技术——双频干涉型光纤传感技术，该技术结合了干涉型光纤传感器与波长调制型光纤传感器的优点，不仅分辨率高，而且易于解调和复用。本报告将介绍我们近年来围绕该技术开展的系统性工作，包括超短腔双频光纤激光器制作、对外界敏感特性、换能机制、传感器复用技术，还将介绍双频干涉型光纤声波/超声波传感器及其在生物光声成像等方面的应用。

Abstract:

Fiber-optic sensor converts measurands into a change in amplitude, phase, wavelength or polarization of light in optical fiber. It has advantages of small size, light weight, immune to electromagnetic interference, remote sensing capability, and has been widely used in civil engineering, aerospace, oil & gas, electric power, and so on. In this talk, I will introduce a new type of fiber-optic sensor named dual frequency interferometric fiber-optic sensor, which integrates the advantages of interferometric sensor and wavelength-encoded sensor. It not only provides high resolution, but also can be easily demodulated and multiplexed. We will report our recent works on this type of sensing technology, including the fabrication of ultra-short dual frequency fiber grating laser, its response to external perturbations, the transducer design, and the sensor multiplexing. Furthermore, we will introduce the dual frequency interferometric acousto-ultrasonic sensors and their applications in biological photoacoustic imaging, etc.

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