China Mobile has successfully conducted a real-time transmission test of a 1.6Tb/s single-carrier signal over a distance of 960 kilometers. The trial utilized 230GBaud technology on standard G.652.D optical fiber, marking a new record for the company and the industry's first long-haul verification at this baud rate.
The transition from the previously used 130GBaud rate to 230GBaud required two years of development. This advancement allows for higher data capacity within existing spectral resources. By achieving this performance on conventional G.652.D fiber, the company demonstrates that existing backbone infrastructure can support 1.6T speeds through equipment upgrades without requiring new fiber installation.
The 1.6T standard is positioned as the successor to 400G, with primary applications in data center interconnection and long-haul traffic management. China Mobile is actively participating in international standardization efforts, including the ITU-T G.709.5 and G.696.1 frameworks. The results from this 960-kilometer test will serve as empirical data for future standard development.
