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【学术讲座通知】用先进光源提高光子系统的频谱效率

来源:     作者:吴毓泽    发布时间:2019年12月03日    浏览:

报告题目: 用先进光源提高光子系统的频谱效率

Spectrally Efficient Photonic Systems using Advanced Optical Sources

报告时间2019123 (星期二)下午4:00 pm

报告地点:光电国家研究中心D 302

报告人: 爱尔兰都柏林城市大学Prof L. Barry

邀请人:余永林 教授

内容摘要:
Abstract

The continuing growth in demand for bandwidth (from residential and business users), necessitates significant research into new advanced technologies that will be employed in future broadband communication systems. Two specific technologies which are becoming increasingly important for future photonic systems are wavelength tunable lasers and optical frequency combs. Wavelength tunable lasers are currently becoming the norm in optical communication systems because of their flexibility and ability to work on any wavelength. However, as their operating principles are different to standard single mode lasers they can affect how future systems will operate. For example as optical transmission systems move towards more coherent transmission (where the data is carried using both the intensity and phase of the optical carrier), the phase noise in these tunable lasers will become increasingly important. Optical frequency combs also have many applications for future photonics systems, and for telecommunications they can be used to obtain the highest spectral efficiency in optical transmission systems by employing the technology of optical frequency division multiplexing (OFDM) that has been widely employed to increase spectral efficiency in wireless systems.  This talk will focus on the development and characterization of various wavelength tunable lasers and optical frequency combs, and then outline how these sources can be employed for developing optical transmission systems and networks which make the best use of available optical spectrum.

报告人简介:
Biography

Prof L. Barry 1993-1996年间在法国电信研究实验室(France Telecom Research Labs 从事博士研究,后获法国雷恩大学(University of Rennes)博士学位。1996-1998年在新西兰奥克兰大学应用光学中心从事博士后研究。1998年到爱尔兰都柏林城市大学工程与计算学院电子工程系、网络与通信研究所(RINCE)工作,并创建了无线与光通信实验室。2006年任RINCE网络与通信研究所所长,2012年担任都柏林城市大学工程与计算学院副院长,主管科研工作。

Prof. L. Barry主要从事全光切换与采样、RoF通信技术、超短脉冲产生与特性研究,以及调谐半导体激光器在光网络中的应用等方面的前沿性研究。多次获得爱尔兰基金委和欧盟的研究资助,其中三次获得爱尔兰基金委重点资助的SFI InvestigatorProf. L. Barry已发表的论文超过500篇(其中核心期刊200篇;前沿会议300篇,28次特邀报告),参与两本著作的编著。历任三大国际光纤通信及光电子会议技术委员会委员(OFC, ECOCCLEO-Europe/EQEC),两次担任CLEO-Europe/EQEC光纤通信分会主席, OFC 2010光电子器件分会主席,ECOC 2019大会主席现为IEEE高级会员,2018 - 2019 IEEE Photonics Society Distinguished Lecturer.