ETOP is a biennial international conference that brings together leading optics and photonics educators and researchers from all levels and orientations to discuss, demonstrate, and learn about new developments and approaches to teaching in these fields.

The bi-annual ETOP conference, first held in 1988, is an international forum dedicated to the dissemination of information related to the teaching of optics and photonics.

The intent of this conference is to inform professors, students, teachers, industry professionals, and technical trainers on the best practices of teaching optics and photonics for the future. ETOP addresses topics at the pre-college, technician and two-year, four-year, and graduate-equivalent levels.