10 Gbps All-Optical Broadband: China's Journey from Technical Standards to Industry Ecosystem

As new technologies and industries keep advancing at unprecedented speeds, AI-driven services and applications are raising the bar for network capabilities.

Requirements from the consumer Internet sector: This sector is witnessing explosive growth in innovative business models, from digital healthcare and digital office solutions, to entertainment platforms and smart travel services. This expansion is accompanied by a proliferation of smart devices – smartphones, virtual reality (VR) / augmented reality (AR) headsets, intelligent connected vehicles, smart home gateways, and industrial IoT systems – all evolving toward diversified, distributed architectures. These developments are driving two critical requirements: ubiquitous data processing capabilities and intelligent scheduling of computing resources across the cloud, edge, and devices. At the heart of this transformation lies one indispensable enabler: high-performance networks.

Requirements from the industrial Internet sector: The demand for computing power in this sector is growing exponentially. This surge is driven by massive, rapidly expanding data volumes across industrial, agricultural, and service sectors – from product design and R&D to manufacturing and operations. These applications require real-time, accurate data processing with near-zero latency, making high-speed network transmission critical for maintaining processing efficiency at scale.

Requirements for network performance: The third current driver of network capability requirements is the explosive growth we are seeing in generative AI applications thanks to the maturation of AI model technologies. Both AI model training and inference processes now have significantly higher network performance requirements, necessitating ultra-high bandwidth, deterministic ultra-low latency, and high-speed interconnection, along with high flexibility, agility, and efficient computing-network collaboration.

All these new services and applications are driving evolution towards higher-bandwidth, lower-latency, and more reliable 10 Gbps all-optical broadband.

What is 10 Gbps all-optical broadband?

As the next-generation optical network, 10 Gbps all-optical broadband is a key component and the foundation of new infrastructure. 10 Gbps all-optical broadband provides users with 10 gigabit access capabilities, including 50G PON ultra-broadband optical access, collaboration between fiber to the home (FTTH) / fiber to the room (FTTR) and Wi-Fi 7, high-speed and large-capacity optical transmission, as well as the integration of AI and optical networks. The development of 10 Gbps all-optical broadband can effectively drive investment growth, enhance user experience, stimulate data consumption, support industrialization, and accelerate both economic and social digital transformation.

End users enjoy 10 gigabit speeds thanks to 10 Gbps all-optical broadband delivering lower latency, higher bandwidth, and higher reliability than gigabit optical networks. The integration of 50G PON, FTTR, and Wi-Fi 7 enables intelligent traffic slicing and distribution, which then supports ultra-high broadband development by increasing uplink and downlink bandwidth and unlocking differentiated experience assurance and intelligent user perception. These capabilities significantly improve both Internet access performance and overall network service quality.

At the same time, high-speed OTN is steering network development towards ultra-large capacity and ultra-low latency. As OTN advances toward high capacity with fine service granularity and long-haul transmission, 400G/800G high-speed interconnection technology will support the backbone layer's three-dimensional connectivity. This fulfills the high-speed interconnection requirements of the "Eastern Data, Western Computing" initiative, connecting computing resources into a single synergized network. On top of this, 100G OTN will be progressively deployed at key sites to enable users to access computing centers via one hop through metropolitan networks. In addition, the convergence of networks and AI will facilitate the intelligent development of optical networks. AI technologies will be increasingly applied to network planning, construction, maintenance, optimization, and operations. Moreover, network foundation models will be increasingly integrated into optical networks. As a result, AI technologies will promote advancements in network intelligence and facilitate the evolution toward higher levels of autonomy.

Is 10 Gbps all-optical broadband ready in terms of technology, standardization, and industry?

Technology readiness

Several core 10 Gbps all-optical broadband technologies have reached technological maturity.

First, in 50G PON applications for optical access networks, critical challenges like sensitivity degradation and dispersion penalty differences have been addressed. Furthermore, small-size high-isolation optical modules can now be applied on the live network, with the optical power budget reaching 32 dB. With these solutions in place, 50G PON-based 10 Gbps optical networks featuring three-generation coexistence (GPON, XG(S) PON, and 50G PON; or EPON, 10G EPON, and 50G PON) and symmetric uplink and downlink transmissions are ready to enter deployment in the near future. Key technologies for the joint deployment of FTTR and Wi-Fi 7 are poised for breakthroughs that will enable seamless indoor roaming, orderly air interface transmission, and centralized resource management and control. This progress will also extend 10 Gbps all-optical broadband further to home broadband deployment, enhancing home network quality and user experience.

Second, new advancements are occurring in optical transmission and bearer network technologies. Breakthroughs in modulation formats, optoelectronic device performance, and signal processing algorithms – alongside the application of new materials and optical fibers – will continue to drive the deployment of 400G/800G transmission networks. The combination of 800G or higher networks with technologies such as spatial division multiplexing, band expansion, and hollow-core optical fibers is being tested and verified, which will serve to accelerate the maturity and application of such networks.

Third, AI is reimagining the development of optical networks. AI-powered analysis and large network models can be applied to the entire network lifecycle – planning, construction, maintenance, optimization, and operations – to realize L3 autonomy, and put the networks on track to L4 evolution. This makes many advanced network capabilities possible: resource digitalization, intelligent sensing of dumb resources, network-wide parameter awareness, optical cables/resource planning and prediction, intelligent fault location and demarcation, and risk prediction.

Standard readiness

Both international and national standards for 50G PON have matured, with all key technical specifications now fully released, setting the stage for 10 Gbps all-optical broadband.

In 2023, ITU-T SG15 approved G.9804.3 Amd.2, which defines the physical-layer technical solution for symmetric 50G PON.

China has issued standards for both symmetric and asymmetric 50G PON at the physical layer and protocol layer, as well as the standards for supporting the co-existence of three PON technologies (GPON/EPON, 10G PON, and 50G PON) on the same network.

The FTTR technical standards are also seeing continuous improvement. China has published industry standards covering overall technical requirements, application scenarios, and specifications of FTTR. The industry has reached a consensus on FTTR technical standards at the management plane, control plane, and data plane. Work is now underway to incorporate these developments into the FTTR standards for official release.

Regarding high-speed transmission technologies, China has officially released the 400G backbone network transmission standards, and has completed the review of the 800G WDM industry standards for metro networks.

China's three major carriers are also actively participating in standardization. China Telecom published a white paper on new all-optical access technologies in 2023, China Mobile released the 10 gigabit network white paper in 2024, and China Unicom introduced its white paper on deploying 50G PON in campus scenarios. Collectively, these standardization efforts serve to effectively guide 50G PON application and development.

Industry readiness

Currently, mainstream optical network equipment vendors are capable of developing and producing the key devices for 10 Gbps all-optical broadband. However, the industry value chain for core optoelectronic devices still requires improvement in order to support large-scale commercial adoption of 50G PON, which is a key technology for 10 Gbps all-optical broadband. For instance, the industry value chain of critical 50G PON optoelectronic components, such as 50G DML, 50G APD, BM DRV, and BM-TIA, is not yet ready to produce high-performance, cost-effective components. The design and manufacturing process for built-in MPM optical modules needs to be further improved to overcome the challenges in developing SFP triple-mode optical modules. With optical digital signal processor (oDSP), another key component in optical communications, multi-mode burst clock recovery and burst dynamic equalization are still technically difficult to achieve. Consequently, there is an insufficient supply of high-performance oDSP products, which is driving up their cost and testing the limits of equipment vendors' R&D capabilities.

What new services does 10 Gbps all-optical broadband enable?

10 Gbps all-optical broadband has what we call the "four connections and one sensing" scenarios: the home, enterprise, machine, and computing connectivity scenarios, plus the intelligent sensing scenario. It provides high-quality access network services for millions of households and many different industries which will be foundational for digital economy development. Through continuous technological innovation and scenario integration, 10 Gbps all-optical broadband has already helped create numerous innovative applications in smart homes, manufacturing, campus management, AI development, healthcare, and education. Its low latencies, high reliability, and large bandwidths are accelerating digital and intelligent transformation across multiple industries.

Smart home: Smart lifestyles in multiple scenarios

The ultra-high speeds, low latencies, and high reliability of 10 Gbps all-optical broadband enable many services that elevate digital home experiences, including:

Cloud NAS services: FTTR+X technology powered by 10 Gbps all-optical broadband allows home users to achieve dual backup between local storage and cloud NAS. In addition, integrated AI capabilities provide automated file classification and intelligent search functionality, creating a comprehensive digital home management center.

Intelligent security and caretaking services: Combining Wi-Fi sensing and AI cameras with 10 Gbps all-optical broadband provides full-coverage home surveillance. The system utilizes 3D optical sensing to detect potential resident falls and issue emergency alerts in real time, all while maintaining privacy. This solution further supports multi-channel HD monitoring with millisecond-level latency.

Immersive entertainment: 10 Gbps all-optical broadband delivers seamless 8K UHD video streaming, naked-eye 3D experiences, and cloud gaming.

Manufacturing: Intelligent manufacturing and digital transformation

The application of 10 Gbps all-optical broadband in manufacturing focuses on improving production efficiency and intelligence. Typical application scenarios include:

Automated optical inspection (AOI): 10 Gbps all-optical broadband's high bandwidths and low latencies enable factories to transmit high-resolution product images to cloud-based AI inspection systems in real time, which can triple inspection efficiency and improve defect identification accuracy to 99.9%.

Remote control and collaborative production: 10 Gbps all-optical broadband supports remote equipment control and cross-workshop data synchronization while enabling millisecond-level response for high-precision industrial computers and robotic arms. The network also allows engineers across multiple sites to collaboratively debug production lines using XR technologies.

Industrial IoT and predictive maintenance: Industrial PON technology, which is based on 10 Gbps all-optical broadband, allows factories to deploy large-scale sensor networks to monitor and collect real-time data from more devices. With a 10 gigabit network, thousands of sensors can be connected while AI models predict device faults, which can reduce maintenance costs by up to 40%.

Campus management: Smart security and management systems

The application of 10 Gbps all-optical broadband in campus management focuses on efficiency and safety. Typical application scenarios include:

Intelligent video security systems: 50G PON and Wi-Fi 7 enable real-time backhaul and analysis of 4K/8K security videos across campus networks. AI algorithms can then simultaneously process data from up to 2,000 cameras, identifying potential security threats in just seconds.

Emergency response and disaster prevention: 10 Gbps all-optical broadband supports multi-sensor integration, making temperature, humidity, and gas concentration monitoring more effective. In spaces like chemical industrial parks, AI models can then help assess leakage risks in real time, and the low-latency network can be used to trigger automatic safety measures, such as sprinkler systems, as soon as an unsafe event is detected.

Smart parking and traffic management: 10 Gbps all-optical broadband networks can be used to connect smart locks and license plate recognition systems to optimize parking space allocation and provide real-time navigation. This is already being applied to improve parking efficiency by up to 60%.

AI development: Intelligent applications and computing power collaboration

10 Gbps all-optical broadband provides underlying support for AI technologies that promotes scalable AI development. Key applications include:

Distributed AI training and inference: High-speed optical transmission networks enable dynamic allocation of computing power across edge nodes and the cloud. By using 10 gigabit connectivity, enterprises can coordinate training across clusters each running on thousands of GPU cards, significantly improving training efficiency.

Intelligent O&M and network optimization: 10 Gbps all-optical broadband management platforms can integrate AI foundation models to automatically diagnose network faults and optimize traffic scheduling, achieving an up to tenfold increase in O&M efficiency.

Healthcare and education: Remote services and interaction

Organizations like hospitals and schools can use 10 Gbps all-optical broadband to develop or upgrade essential services. Typical application scenarios include:

Telemedicine and surgical guidance: 10 Gbps networks can support real-time transmission of 4K/3D medical images and remote surgery demonstration with a latency of less than 5 ms. Such applications enable doctors to control medical devices remotely in real time to teach local doctors through simulative operations.

VR education: When deployed on school campuses, 10 Gbps all-optical broadband allows students to use VR devices to participate in virtual education experiences, such as chemistry experiments and practical demonstrations. Data collected during these experiences can also be synchronized to a cloud analysis platform in real time.

Cloud classrooms and resource sharing: Cloud classrooms can support thousands of concurrent users to simultaneously access HD educational resources. AI teaching assistants can also be used to provide personalized content recommendations to students.

What are China's existing policies for 10 Gbps all-optical broadband deployment?

In January 2025, the MIIT officially released the Notice on Piloting 10 Gbps All-Optical Broadband, which marks the official entry of China's 10 Gbps all-optical broadband into the pilot application phase. This policy aims to promote industry collaboration, in order to rapidly resolve key implementation challenges and achieve core technology and equipment breakthroughs. Ultimately, their goal is to accelerate national industrialization by achieving industry maturity and facilitating the orderly deployment and adoption of 10 Gbps all-optical broadband.

According to the MIIT's plan, during 2025, they are focusing on 10 Gbps all-optical broadband pilots in scenarios such as residential areas, factories, and industrial parks. In their "10 Gbps Community" pilot project, 50G PON ports and FTTR all-optical networking are being deployed in residential communities to achieve "10 gigabit to the home and gigabit to the terminal". The project also supports the development of cloud storage, cloud gaming, naked-eye 3D, and intelligent caretaking services. Additionally, it is attempting to optimize interconnection between smart home devices to create a full-integrated smart living environment.

The "10 Gbps factory" pilot project is focusing on the adoption of 50G PON and industrial optical network technologies in workshops and factories to support applications such as AI quality inspection and production monitoring. This will help factories achieve intelligent management and supply chain collaboration, and help transform traditional manufacturing plants into smart factories.

The "10 Gbps campus" pilot project targets provincial-level and higher industrial campuses. It focuses on applying 10 Gbps all-optical broadband in production and office areas so that technologies such as lossless transmission and integrated sensing and communications, which support office management and industrial R&D, can be further explored. Their ultimate goal is to achieve industry integration while enhancing the business environment and overall competitiveness.

The MIIT has selected 168 pilot projects for 10 Gbps all-optical broadband. These projects cover 86 cities across 30 provinces in China, including first-tier cities like Beijing, Shanghai, and Guangzhou. It also includes cities in the central and western regions of China, as well as third- and fourth-tier cities such as Changde, Hohhot, and Panzhihua as one of their stated goals is "all-region piloting and tiered development".

From a service application perspective, dozens of telecom carriers had already launched 10 Gbps home broadband packages around the world by the end of 2024. Major cities in China, including Beijing, Shanghai, Guangzhou, Shenzhen, Nanjing, Qingdao, and Wuhan, have also launched 10 Gbps home broadband services based on 50G PON. These services, combined with F5G-A high-speed wireless networks and innovative 10 gigabit applications like 10 gigabit cloud NAS, 3D optical sensing for caretaking, and 10 gigabit cloud gaming, deliver premium user experience.

The pilot application scope of 10 Gbps all-optical broadband is continuing to expand while still focusing on three major application scenarios: home services, manufacturing, and campus networking. Examples in China include: Shanghai which has established the world's first 50G PON 10 gigabit demonstration community; Yunnan which has deployed the first 10 gigabit industrial campus; and Hubei which has constructed the first 10 gigabit smart campus. China is emerging as a global leader in both technology and industry adoption when it comes to 10 Gbps all-optical broadband, and the country is committed to maintaining this position.

Technologically, 10 Gbps all-optical broadband is more than just an evolution or upgrade of optical networks. It will also serve as a foundation for new information infrastructure. It will be essential in the intelligent era as it acts as a transformative catalyst for the digital transformation of both the economy and society. China has become a global leader in this area through robust technological innovation and scenario-specific implementation, as demonstrated by breakthrough pilot projects and fast-approaching full-scale commercialization.

Policy support and supply chain maturation are allowing increasingly diverse application scenarios for 10 Gbps all-optical broadband to emerge – many of which will be piloted in 2025. Given this rapid technological evolution and transformation, building an ecosystem that unlocks synergies between network capabilities, application innovation, and sustainable monetization models will be crucial for digital economy development. Looking ahead, the deepening integration of optical networks, AI, and computing power will magnify the impact that 10 Gbps all-optical broadband has on digital transformation as it will become a key enabler of industrial development, social governance optimization, and quality-of-life improvements.