[Munich, Germany, 10 June 2021]
Recently, Huawei announced that it has successfully completed the industry's first live-network DWDM test with a single-wavelength rate of 1.66 Tbit/s in collaboration with leading European carriers. This test aims at cutting-edge technology research. Based on the large-capacity DCI scenario, 96.5 km standard G.652 optical fibers are used, and only common EDFA optical amplifiers are used. In the test, 34 channels were transmitted on the live network. The spacing between each channel was 150 GHz. The total optical fiber capacity exceeded 56 Tb/s, and the spectral efficiency exceeded 11 bit/s/Hz.
In addition, the live-network test also completed 1.77 Tb/s single-wavelength transmission over 60 km, 1.65 Tb/s single-wavelength transmission over 120 km, and 1.6 Tb/s single-wavelength transmission over 180 km. These record-breaking achievements are achieved through Huawei's advanced channel-matched shaping (CMS) algorithm. It includes advanced nonlinear digital signal processing techniques, high-order modulation techniques based on 400QAM, and enhanced probabilistic constellation shaping (ePCS). In particular, it also uses the deep neural network driver algorithm to maintain state-of-the-art signal processing capabilities for superior transmission performance.
Finally, the test verified the MAN transmission capability based on ROADM. In the 452 km G.652 fiber network, Huawei successfully achieved a single-wavelength transmission rate of 1.28 Tb/s without electrical regeneration. Only common EDFA optical amplifiers are used in the entire process.
Dr. Maxim Kuschnerov, Director of Huawei Optical and Quantum Communications Lab, said, "We have achieved an important milestone in the era of single-wavelength 1.6 Tb/s transmission in DCI and MANs." Together with Super C+L spectrum innovation, the future single-fiber transmission capacity will exceed 100 Tb/s, which will fully support the continuous growth of future network traffic."
That is amazing
