学术报告：Silicon photonics and hybrid silicon lasers
报告时间：2012年12月7日（星期五）下午3:00 – 5:00
报告地点：玉泉校区教三441
演讲人：Prof. Roel Baets， Ghent University
Abstract：
Silicon photonics has gained a lot of momentum both as a research discipline and as an industrially relevant technology.
In the first part of this talk I will give a broad introduction to the field, the main achievements in recent years and the main applications.
In the second part of the talk I will focus on hybrid silicon lasers, based on bonded III-V layers on top of a silicon waveguide circuit. A considerable number of concepts have been reported for such lasers, in particular with respect to the type of cavity, the type of light coupling between the silicon layer and the III-V layer and the degree of light confinement in the gain layer. While good performance has been demonstrated for various devices, it is also true to say that in most cases performance is far from ideal. Hence the question arises how to evolve to more ideal hybrid silicon lasers. I will review the most important hybrid silicon lasers reported so far with respect to these performance criteria and discuss possible options towards a more complete coverage of desired properties.
Biography：
Roel Baets is full professor at Ghent University since 1989. He has also held part-time professor functions at TU Delft and at TU Eindhoven. He is associated with IMEC. He heads the Photonics Research Group and is director of the Center for Nano- and Biophotonics (NB-Photonics). He has been coordinator of the European Network of Excellence ePIXnet. He has published over 300 journal papers and has been inventor on more than 20 patents. His research focuses on silicon photonics and its applications in smart sensors, biomedical instrumentation and spectroscopy. Roel Baets holds an Advanced ERC Grant. He is a Fellow of the IEEE.