BYR Achieve · 镜像论坛

与世界顶尖科学家进行近距离交流，4月21日上午9：50在北京交通大学科学会堂将举行南安普敦大学光电子中心主任David Payne教授为我校名誉教授的聘任仪式及报告会，欢迎参加。报告题目：The development of optical fibre and photonics David N Payne Optoelectronics Research Centre University of Southampton, Southampton, UK D.N.Payne教授，英国首相首席科学顾问，大英帝国司令勋章获得者、英国工程院院士，挪威科学院院士，英国皇家学会会士，世界著名的光电子学先驱、特种光纤之父，2007年被评为俄国科学院院士，2008年被评为世界著名顶尖科学家，诺贝尔奖提名候选人，现任英国南安普顿大学光电子中心主任、南安普敦光电子有限公司高级顾问。D.N.Payne教授曾受多个国际知名会议邀请担任嘉宾，先后发表650余篇科学论文以及获得34个国际奖项。他的许多研究对光纤通信产业发展产生了革命性的影响。1985年他带领研究团队在英国南安普顿大学首先研制成功的掺铒光纤放大器(EDFA)，被誉为光纤通信中最伟大的发明之一。这项重大发明使得大容量、长距离的波分复用光纤通信和全光纤系统成为可能，并已成为当今全世界光纤通信领域必选技术之一。D.N.Payne教授目前的主要研究领域为高功率光纤激光器，研制输出功率达到千瓦级的高功率光纤激光器，并保持多项其他纤维激光器的性能记录。 Abstract Powering the optical fibre internet with its huge global reach, photonics has changed our lives. Optical fibres snake across continents and oceans carrying terabits per second of data in a vast information network that brings untold human connectivity. How did this happen and is that the end of it? Capacity demand continues to grow at a startling rate, doubling every two years, while the internet is estimated as burning 4% of world energy usage. We are now at the point where consumer bandwidth demand in Western countries is such that it is being rationed by a number of ISP’s through throttling and ‘traffic management’. Arguably, we needed to reach this point before a return of a more orderly market for bandwidth is possible. We are thus at the threshold of a new optical telecoms research paradigm and it is challenging to predict the areas of greatest interest for new component development. The solution to both of these unexpected consequences of success is more photonics, reaching further into the network with optics to overcome the existing bottlenecks and employing next-generation optical components. The great success of optical fibres and planar circuits in telecommunications has generated numerous applications in a number of related fields, such as sensing, bio- and nano-photonics and high-power lasers. The almost total control of light amplitude, frequency and phase continues to make inroads into the use of photonics in metrology, manufacturing and defence. The huge investment made by the telecommunications community in advancing photonics over the last three decades brings a considerable opportunity to disrupt other markets with new optical technology. The extraordinary level of optical control coupled with the extended reliability that is routine in telecoms is regarded as revolutionary in, for example, lasers for industrial processing or the life sciences. Remarkably, the mW of telecommunications can be scaled with near-perfect beam quality to powers as high as kWs using fibre amplifiers. These attributes and the ability to control high power through modulation of a small seed laser (Master Oscillator), followed by a Power Amplifier (MOPA), may find extensive application in Laser Radar, particularly in view of the excellent coherence obtainable at the kW level. Several markets are benefiting immeasurably from the telecommunications reliability culture through innovative engineering and extensive pre-release testing. The talk will review optical component developments across a number of areas, with particular emphasis on recent innovations, including nano and micro-structured fibres, highly non-linear glasses and large-core, damage resistant fibres for kW lasers. It will also explore prospects for building new technologies and applications through harnessing the properties of new optical materials and structures.

学术报告-与世界顶尖科学家David N Payne教授近距离交流