The lab verification of a 200G+ large-capacity transmission system was jointly accomplished by China Telecom and Huawei. It would give crucial technical assistance for the development of a next-generation long-haul, high-capacity transmission infrastructure.
Transmission traffic is increasing significantly each year. In this context, improving transmission speed, capacity, latency, stability, and reliability is crucial, according to China Telecom and Huawei. It would be significantly more difficult to build 200G+ long-haul, big-capacity transmission backbone on a broad scale while decreasing the cost for terrestrial cable networks than it is for submarine cable systems.
Huawei offers a novel E2E optical-electrical solution based on Flexgrid Blade OXC to overcome these challenges. Super 200G+ based on channel-matched shaping (CMS), unique pluggable erbium-doped fiber amplifiers (EDFAs) with ultra-wide gain spectrum, Super C+L band ready Raman amplifiers, and liquid crystal on silicon (LCoS) providing flexible slicing and ultra-low filter penalty are among the characteristics.
Huawei recently confirmed the possibility of 1:1 replication of the commercial deployment on a live network in a lab with transmission specialists from China Telecom, and eventually, Super 200G+ transmission across 3600 km without electrical regeneration was accomplished. The approach would boost single-fiber capacity to 16 terabits per second, with the potential to grow to 32 terabits per second 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,” said Victor Zhou, President of Huawei’s Transmission Network Domain. “This solution doubles the transmission capacity without compromising the distance, continuously reducing the per-bit cost for operators.”