中国科学技术大学研究生教育创新研究计划——高水平学术前沿讲座

讲座题目:High-Speed Optical Networks Based on Self-Configuring Optical Nodes

主　  讲：惠荣庆博士

Professor, University of Kansas, Lawrence, KS

时　  间：2011年6月27日上午10:00

地　  点：科大西区电子工程与信息科学系第一会议室电三楼314

主办单位：中国科学技术大学研究生院、信息学院电子工程与信息科学系

Abstract:  

The concept of high-speed self-configuring network based on autonomous optical nodes will be presented. Constant increase in the demand of bandwidth requires future optical networks to provide end users with multi-gigabit capacity. It is well known that optical networks have many advantages including ultra-wide bandwidth and high degrees of transparency. However, the deployment of optical networks is mainly delayed by two factors: the excessive cost of optical node equipment and the highly complex procedure of design, installation and maintenance of overall network. To circumvent the cost and complexity burden of extant optical networks, we propose a novel approach to design ad-hoc optical networks that use cost-effective self-configurable optical nodes. Such nodes will look like today's fast Ethernet hubs and switches, providing however, several orders of magnitude higher bandwidth, and larger geographical network coverage. In these networks, any user will be able to connect such nodes with existing fibers by a simple plug-and-play operation. Once connected, these optical nodes will be able to communicate with one another, finding optical link properties between them and looking for cost-effective ways to provide reliable and high-speed optical circuits to the end user's applications and interfaces. This self-configuring property of the optical nodes will be essential to make the node installation procedure easy, and to adjust the optical data flows to both varying traffic patterns and changing conditions of the optical physical layer, e.g., introduction and removal of nodes, aging of optical components and soft failure of network elements.

The proposed self-configuring optical node will periodically updated optical network environment and fiber properties through optical interrogation. Impairment aware routing decision will be made simplified calculation based on physical layer properties of the optical network.　

Biography:

Dr. Rongqing Hui is a professor of Electrical Engineering and Computer Science, the University of Kansas in Lawrence KS. His research interests are in lightwave communication systems and subsystems, photonic devices, optical instrumentation and photonic sensors.