80km Transmission over open line system developed by Tencent
Acacia Communications, (ACIA), a provider of high-speed coherent optical interconnect products, announced that, in a lab demonstration, Tencent has completed 80km fiber transmission of multiple 200G 8QAM signals over its OPC-4 open line system (OLS) using Acacia’s CFP2-DCO modules on third-party switch platforms. In order to emulate the higher fiber loss in its metro networks, Tencent added additional 10 dB optical attenuators to the tested link, and was still able to achieve error free operation in all the ports. OPC-4, which was developed by Tencent, meets Tencent’s SDN requirements for a disaggregated transport network and is fully integrated into Tencent’s network controller. Tencent believes that this lab demonstration validates the deployment readiness of their IP over DWDM solution using OPC-4 in their metro DCI networks.