Passage: Mourou has been director of the Laboratoire d'optique appliquée at the ENSTA from 2005 to 2009. He is a professor and member of Haut Collège at the École polytechnique and A. D. Moore Distinguished University Professor Emeritus at the University of Michigan where he has taught for over 16 years. He was the founding director of the Center for Ultrafast Optical Science at the University of Michigan in 1990. He had previously led a research group on ultrafast sciences at Laboratoire d'optique appliquée of ENSTA and École polytechnique, after obtaining a PhD degree from Pierre and Marie Curie University in 1973. He then went to the United States and became a professor at the University of Rochester in 1977, where he and his then student Donna Strickland produced their Nobel prize-winning work in the Laboratory for Laser Energetics at the university. The pair co-invented chirped pulse amplification, a "method of generating high-intensity, ultra-short optical pulses". Strickland's doctoral thesis was on "development of an ultra-bright laser and an application to multi-photon ionization".In the 2000s, Mourou was featured by a French film company in a publicity video for the Extreme Light Infrastructure (ELI).On 23 November 2015, he attended the Third Christmas Lecture held in Bucharest. His presentation was entitled Breaking Through The Unknown: Extreme light, Science to Art. The previous lectures were given by Sir Thomas Kibble and Joseph Silk.

Question: At what college was Mourou a professor?
Haut Collège