报告时间：2017年11月1日（周三）上午9:30

报告地点：教三326

报告名称：Low-noise lasers for microwave photonics applications and Resonant fiber gyros based on Kagome hollow-core fibers

报告摘要：

Microwave photonics links will play an important role in future microwave systems. They allow for example to carry analog signals or radar local oscillators on an optical carrier over long distances. One of the key elements of such microwave photonics links is the laser source. In this context, we will describe our efforts to develop low-noise dual-frequency Vertical External Cavity Surface Emitting Lasers to distribute local oscillators.
Our group is also involved in the development of new architectures of optical gyroscopes. In particular, we are trying to develop passive resonant fiber optic gyros in which rotation creates a frequency difference between the two counter propagating waves. One major issue in these gyros is the bias induced by Kerr effect occuring inside the fiber. We will describe our efforts to eliminate this problem by using hollow-core fibers.

报告人简介：
Fabien Bretenaker graduated from Ecole Polytechnique, France, in 1988. He received his PhD degree from University of Rennes, Rennes, France, in 1992 while working on ring laser gyroscopes for Sagem. He joined the Centre National de la Recherche Scientifique, Rennes, in 1994 and worked in Rennes until 2002 on laser physics and nonlinear optics. In 2003, he joined the Laboratoire Aimé Cotton, University of Paris-Sud, Orsay, France, working on nonlinear optics, laser physics, quantum optics, and microwave photonics. He is also a part time professor in Ecole Polytechnique, Palaiseau, France, and adjunct professor in Ecole Normale Supérieure Paris Saclay, Cachan, France.

Present Address: Laboratoire Aimé Cotton, Orsay, France
Email: Fabien.Bretenaker@u-psud.fr
Tel: +33-1-69-35-21-54