The very dynamic Photonics and Optics Students Group of Laval (REPOL) organizes industrial visits, conferences and training for COPL students. Active for more than 15 years, REPOL is also involved in scientific facilitation and popularization activities for young people in high school and college to encourage them to consider higher education in science. With a unifying character, REPOL animates the social life of the COPL by organizing happy hours and themed parties.