Telecom equipment vendor Huawei and Telefonica Chile will deploy the world’s first commercial OTN-based 400G wavelength-division multiplexing (WDM) network this year using 100G and 400G technologies.

Designed to reduce the cost and complexity of WDM passive optical-network applications, the SOA-RL-1550 reflective semiconductor optical amplifier operates as a colorless amplifying modulator without ...