On November 4th, the 2023 ACP (Asia Communications and Photonics) Industrial Forum, hosted by FiberHome, was successfully held at the Wanda Reign Hotel in Wuhan. The forum invited core experts from the National Information Optoelectronics Innovation Center, China Mobile Research Institute, as well as professors from domestic and foreign universities and research institutions in related fields, to discuss the research and application of the next-generation optical network in areas such as ultra-high speed, ultra-large capacity, and ultra-long distance. During the event, FiberHome, together with China Mobile and the National Information Optoelectronics Innovation Center, jointly announced the 'industry's first single-wavelength Tbit-level S+C+L extended band without Raman-assisted ultra-large capacity transmission system.' This breakthrough provides a solid theoretical foundation and a feasible practical basis for the continuous evolution of future optical networks towards 800G and Tbit+

●FiberHome advocate: Encouraging close collaboration between industry, academia, and research institutions to jointly create a bright future for the optical communication industry.

Vice President Fan Zhiwen of FiberHome Communications, as a representative of the organizer, delivered a speech. Mr. Fan stated that communication, as the "main artery" of economic and social information and the "cornerstone" of the digital economy, plays an irreplaceable strategic role in the transmission of information and communication. Currently, with the flourishing emergence of artificial intelligence applications represented by ChatGPT, awareness of artificial intelligence in the industry has increased, providing new models and pathways for the development of the digital economy. Therefore, facing the new challenges of future development, Mr. Fan advocated for continuous close collaboration between the industry and academia in areas such as ultra-high-speed optical transmission, achieving complementary advantages, jointly overcoming difficulties, and creating a bright future for the optical communication industry. He also expressed that FiberHome consistently adheres to the guiding principle of innovation, continually increasing collaboration efforts in technological innovation, strengthening the key core technology breakthroughs, and unlocking new value for intelligent optical networks.

●Release of Cutting-edge Technology - Industry's First Tbit-level S+C+L Extended Band Without Raman-Assisted Ultra-Large Capacity Transmission System

With the continuous improvement of system capacity and the evolution towards future rates of 800G/1.6T and beyond, how can we enhance spectral efficiency while considering transmission distance? Dr. Wang Yaqin, Manager of the Pre-research Department at FiberHome Communications, shared key technologies for achieving Pbit capacity in a single-fiber optical transmission system. The comprehensive report covered various dimensions, including system, devices, and technologies.

In response to the new demands on optical networks from computational networks, Dr. Ge Dawei from the China Mobile Research Institute introduced the technical research and practical achievements of China Mobile in constructing a new 400G all-optical network. He also shared the latest research progress of China Mobile in ultra-high-speed, large-capacity optical transmission at 800G and above.

FiberHome Communications, in collaboration with partners such as China Mobile, has conducted long-term collaborative research on cutting-edge optical communication technologies. To explore the channel limits of single-mode fibers at Tb/s level and the full-wave configuration of S+C+L bands, FiberHome Communications, in collaboration with China Mobile and the National Optoelectronics Innovation Center, conducted prototype experiments on S+C+L multi-band full-wave configuration without Raman-assisted ultra-wideband. The experiment achieved transmission verification in a super-wide spectrum range of 19.5THz. To make full use of the transmission capacity of 156 channels in the S+C+L band, a probability constellation shaping algorithm was employed. In the C and L bands, 64QAM modulation formats were used, with a net rate of above 1Tb/s. Due to limitations in transmission performance, the modulation format in the S band was flexibly adjusted to 16QAM. The experiment, conducted on a 150km G.654.E optical fiber using pure-doped fiber amplification, ultimately achieved a single-wavelength Tb/s level full-wave technology trial with a total capacity of 150.27T, and released the industry's first Tbit-level S+C+L extended band without Raman-assisted ultra-large capacity transmission system cutting-edge technological achievements.

During the unveiling ceremony, Zhang Bin, President of the Network Product Line at FiberHome Communications, expressed that in the 100G era, the C-band was the absolute mainstream, and the 400G era-initiated C+L transmission. However, as transmission capacity approaches the Shannon limit, where will the future path lead? The latest achievements released today are an important exploration in the evolution of the 'three supers' in optical networks, demonstrating the joint efforts of FiberHome and the industry. In the future, FiberHome will continue to collaborate with China Mobile, the academic community, and the industry to promote the vibrant development of optical communication and contribute to advancing the development of the optical communication industry to a new stage!

●Technical Outlook - Facing the forefront of technology, exploring future technologies, jointly envisioning new prospects for optical networks.

In response to the application requirements of next-generation coherent optical transmission technology, Dr. Xiao Xi from the National Information Optoelectronics Innovation Center, and Dr. Cao Quan from Fisilink Microelectronics Technology shared the technical challenges and development bottlenecks in devices and coherent modules for ultra-high-speed transmission. They provided advanced technical solutions for the future 'three supers' optical transmission network.

In the second half of the forum, Professor Cai Yi from Soochow University, Professor Yang Qi from Huazhong University of Science and Technology, Professor Wu Jian from Beijing University of Posts and Telecommunications, and Professor Vincent Zhang from Minnesota State University, USA, each presented new research results from their respective teams in the 'three ultra- optical network. They analyzed the challenges faced by various optical network application scenarios, extracted specific breakthrough points in optical network technology, and jointly looked forward to new prospects in the development of 'three ultra-‘ optical network technology. The fascinating presentations from these authoritative experts in the academic community received enthusiastic responses from attendees and viewers.

Looking ahead to future applications, there are still many academic and industrial challenges in the current optical network that require further research and breakthroughs. The construction and promotion of this work are challenging and require sustained efforts. In the future, FiberHome will continue to maintain the collaborative mechanism of 'industry, academia, and research,' complement each other's strengths, jointly explore the development of optical networks, and promote the vigorous development of the communications industry.