China Telecom and Huawei Jointly Complete the Verification of a 200G+ Ultra Large-Capacity and Long-haul Transmission System

WUHAN,China,Feb. 14,2022 -- China Telecom and Huawei have jointly completed the lab verification of a 200G+ large-capacity transmission system. It is set to provide key technical support for the construction of a next-generation long-haul,large-capacity transmission system.

With the rapid development of the Internet Data Center (IDC),Industry Digitalization,and Cloud services,transmission traffic increases by more than 30% every year. Against this backdrop,it is critical to improve transmission speed,capacity,latency,stability,and reliability.Unlike application in submarine cable systems,it is even more challenging to deploy 200G+ long-haul,large-capacity transmission backbone on a large scale while lowering the cost for terrestrial cable systems.

To address these challenges,Huawei provides an innovative E2E optical-electrical solution based on Flexgrid Blade OXC. It features Super 200G+ based on channel-matched shaping (CMS),special pluggable erbium-doped fiber amplifiers (EDFAs) with ultra-wide gain spectrum,Super C+L band ready Raman amplifiers,and liquid crystal on silicon (LCoS) supporting flexible slicing and ultra-low filter penalty.

Together with transmission experts from China Telecom,Huawei has recently verified the feasibility of 1:1 replication of the commercial deployment on a live network in a lab,and finally,Super 200G+ transmission over 3600 km without electrical regeneration has been achieved. The solution doubles the single-fiber capacity to 16Tbps,which can evolve to 32Tbps in the future.

"The verification project proves the performance of Huawei's Super 200G+ E2E optical-electrical solution in ultra-long haul and extremely harsh conditions," Victor Zhou,President of Huawei's Transmission Network Domain,said. "This solution doubles the transmission capacity without compromising the distance,continuously reducing the per-bit cost for operators."