适用于超短脉冲产生和开关的InGaAs量子点器件

InGaAs QD Components for Ultrashort Pulse Generation and Switching

报告人Speaker：Prof. Richard Penty

时 间Time: 2009年11月2号上午10点

地 点Venue: 光电实验室A101

将介绍在剑桥大学开展的量子点激光器和放大器单片集成器件的研究工作。量子点器件具有许多吸引人的特性，例如：它们的空间和谱分离量子点组装，非均匀增益和超快载流子动力学。这些特性使它在锁模激光器和半导体光放大器的运用方面更具吸引力，极大地提高了它们的工作性能。例如：量子点锁模激光器重复频率高达100GHz，脉冲宽度低于几百飞秒。量子点SOA饱和输出功率超过30dBm，噪声指数小于5dB，增益带宽大于100nm。还将介绍1300nm多段InGaAs量子点激光器的研究，特别关注高功率、亚皮秒脉冲产生。也将展示SOA的特性和工作在温度高达70℃的基于SOA的光开关器件。

This talk will describe the work on integrated quantum dot laser and amplifier components at the University of Cambridge. QD devices have many attractive properties, such as their spatially and spectrally separated dot assemblies, their inhomogenous gain, and ultrafast carrier dynamics and these make them attractive for applications such as mode-locked lasers and semiconductor optical amplifiers. This has enabled extremely high performance operation. For instance, mode-locked lasers have been demonstrated with repetition rates as high as 100s of GHz and pulse widths as low as a few 100 fs. QD SOAs have exhibited very high saturation output powers in excess of 30 dBm, noise figures <5dB and gain bandwidths>100nm.

This talk will describe work at the University of Cambridge on multi-section 1300nm InGaAs QD lasers, in particular concentrating on obtaining high power, sub-ps pulse widths. It will also describe the performance of SOA and an SOA based switch components operating at temperatures up to 70°C.

Richard Penty目前是剑桥大学光子学教授。他于1986年获剑桥大学工程和电子科学一等学士学位，1990年获得博士学位，博士期间主要研究非线性光纤器件。随后任SERC IT剑桥大学研究员，直到1990年担任巴斯大学物理学讲师。1996年他加入布里斯托大学并任电气和电子工程学讲师，随后被晋升为高级讲师、光子学教授。2001年他加入剑桥大学工程学院。他分别于2002年、2008年当选为西德尼·苏塞克斯学院董事、副院长。

他的研究兴趣包括量子阱和量子点光子器件单片集成、高速光通信系统、光放大器、高速高亮度半导体激光器、射频光纤传输和局域网系统。他在许多国际会议程序委员会中任职，并担任2010年集成光学欧洲会议联合主席。他已发表杂志和会议论文超过500篇，并担任英国工程技术学会《IET Optoelectronics》总编辑。他同时也是Zinwave有限公司的创始人之一。

Richard Penty is currently Professor of Photonics at the University of Cambridge. He graduated from the University of Cambridge with a first class degree in Engineering and Electrical Sciences in 1986 and a PhD for research into nonlinear optical fibre devices in 1990. Richard was then an SERC IT research fellow at Cambridge until taking up a lectureship in physics at the University of Bath in 1990. In 1996 he moved to the University of Bristol as a lecturer in electrical and electronic engineering subsequently being promoted to a readership and finally to be Professor of Photonics. In 2001 he moved to the Cambridge University Engineering Department. He was elected to a fellowship of Sidney Sussex College in 2002 and was Vice Master in 2008.

His research interests include monolithic integration of quantum well and quantum dot photonic devices, high-speed optical communications systems, optical amplifiers, high speed and high brightness semiconductor lasers and radio over fibre and LAN systems. He has served on the Programme Committees of many international conferences and is co-chair of the European Conference on Integrated Optics in 2010. He has been an author of in excess of 500 refereed journal and conference papers and is Editor-in-Chief of the IET Optoelectronics journal. He is a co-founder of Zinwave Ltd.