October 1, 2023 - October 5, 2023 ECOC 2023 ECOC 2023 October 1, 2023 - October 5, 2023 ECOC 2023 The ECOC Exhibition is the largest optical communications exhibition in Europe, held each fall in a different European city, the event is the key meeting place for decision makers from across the fibre optic communications technology industry.