行健讲坛学术讲座
第250期

时间: 2016年11月18日（周五）10：00
地点: 延长校区行健楼1018室
讲座: 分布式光纤传感最新研究进展
演讲者:Prof. Moshe Tur, 以色列特拉维夫大学
演讲者简介：
Moshe Tur received the B.Sc. in Mathematics and Physics, from the Hebrew University, Jerusalem, Israel (1969), the M.Sc. degree in Applied Physics from the Weizmann Institute of Science, Rehovot, Israel (1973), and his Ph.D. from Tel-Aviv University, Tel-Aviv, Israel (1981). He is presently the Gordon Professor of Electrical Engineering at the School of Electrical Engineering of Tel-Aviv University, Tel-Aviv, Israel, where he has established a fiber-optic sensing and communication laboratory. He authored or co-authored more than 530 journal and conference technical papers with emphasis on fiber-optic sensing (with current emphasis on Structural health Monitoring, using fiber Bragg gratings and the Brillouin and Rayleigh effects), advanced fiber-optic communication systems, as well as on polarization mode dispersion and microwave photonics. Prof. Tur is involved in several international collaborations, including participation in a number of European Projects and activities: INCO, SENARIO (Structural Health Monitoring), SARISTU (Structural Health Monitoring), COST-299 and COST-TD1001. Dr. Tur is a Fellow of both the IEEE and the Optical Society of America.
讲座摘要：
Distributed fiber-optic sensing is attracting a lot of attention these days. The leading technologies are Raman distributed temperature sensing, Brillouin static and dynamic sensing of both strain and temperature and distributed Rayleigh-based acoustic sensing. These three sensing technologies have seen significant progress in recent years. New techniques such as coding, image processing and polarization diversity have made major impacts on the performance of fiber optic distributed systems. Better understanding of the techniques has brought about new design rules regaring allowed launch power, the required extinction ratio of modulators and the need for better components. The talk will concentrate on these new innovations, illustrating their achievements. The interrogation of optical fibers with continuous fiber Bragg gratings will be mentioned as well. Finally, the application of both discrete and distributed fiber-optic systems to structural health monitoring will be also discussed.
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