KT completed the construction of South Korea's first nationwide 600G transmission network.
The transmission network, operational since September 2023, spans over 1,000 km and is capable of transmitting 600G per wavelength in long-distance segments, connecting major cities nationwide from Seoul to Busan, Gwangju, and even Jeju Island.
The deployment uses Ciena’s 6500 flexible grid Reconfigurable Optical Add/Drop Multiplexer (ROADM) with WaveLogic 5 Extreme (WL5e) coherent optics, and Ciena's Manage, Control and Plan (MCP) domain controller.
Henry Kim, Regional Managing Director of Ciena North Asia, stated: “As pioneers in coherent optical technology, Ciena has been supplying optical transmission equipment capable of delivering 100G and 400G services to domestic telecom operators. The 600G transmission network introduced by KT is expected to provide a groundbreaking, cost-effective solution for transmitting high-capacity traffic throughout South Korea. This, in turn, is anticipated to enhance dedicated circuit services significantly.”
