Prof. Dr. Laurent Jolissaint is an engineer and a physicist and got his PhD in 2000 in astronomical instrumentation from the University of Geneva, Switzerland. After his PhD, he spent more than 6 years working for the National Research Council of Canada, then 3 years with the University of Leiden, in the Netherlands, followed by a period of 3 years as a freelance consultant for astronomical adaptive optics projects. He has been active in the telescope and adaptive optics field since 1996, and has worked for most large astronomical observatories in the world (ELT project, TMT project, KECK, Gemini, and CFHT observatories). His skills are in the optical simulation and design of telescopes and adaptive optics systems (PAOLA & OPTICA tools). He has authored many peer-reviewed papers in international optical journals, and published many projects description in SPIE proceedings. Since 2012, he his doing research in optics and teaches optics at the University of Applied Sciences Western Switzerland (HES-SO, HEIG-VD), and collaborated with OPAM team on the development of optical instruments for the new 4 m Turkish telescope, DAG.