Ciena (NASDAQ:CIEN) is providing 100G coherent optical technology to Comcast (NASDAQ:CMCSA) for use in its core network, including Ciena's 6500 Packet-Optical Platform equipped with WaveLogic coherent optical line interfaces.Ciena is also providing Comcast with network management system capabilities and a range of professional services via its Ciena Specialist Services portfolio, including furnishing and installation.