主讲人：Jean-Louis Oudar(Laboratory for Photonics and Nanostructures, CNRS-LPN, Marcoussis, France)
时间：2016年04月27日下午14:00
地点：教三326会议室
报告题目：Saturable absorber mirrors for high energy short pulse generation in fiber lasers
主讲人简介：
Prof. Jean-Louis Oudar received the Doctorate degree in Physics from the University of Paris in 1977.He then joined the National Center for Telecommunication Studies (CNET)and worked on nonlinear optical phenomena in condensed matter. In 1979 he spent a year as a visiting scientist at the Physics Department of UC Berkeley, where he worked on new techniques of nonlinear spectroscopy based on four-wave mixing. Then at CNET and France Telecom R&D, his research has been conducted on the ultrafast dynamic nonlinearities of III-V semiconductor microstructures, quantum optics of microcavities, and the development of optical bistable and switching devices. In 2000, he joined the newly created Laboratory for Photonics and Nanostructures of the National Centre of Scientific Research (CNRS-LPN), where he has leaded the Photonic Devices for Telecommunications group. His present research interests include fast saturable absorber nanophotonic devices for all-optical regeneration, ultrafast semiconductor light sources, short pulse generation and mode-locking phenomena in fiber lasers.
报告摘要：
Optical devices based on vertical microcavities offer an easy access to optical signals, propagated either in free space or in optical fibers, which presents a serious advantage when cost-related packaging issues are considered.Reflection-type semiconductor saturable absorber microcavities (also called semiconductor saturable absorber mirrors - SESAM) are useful devices for an efficient short pulse generation in mode-locked fiber lasers.
After a brief introduction tothe mode-locking mechanisms in fiber lasers, I shall present some of our recent results onsaturable absorber mirrors suitable for the generation of high energy sub-ps optical pulses at 1.55 µm wavelength. Extension of this work to the 2µm wavelength will also be described.
