50G PON (50 Gigabit Passive Optical Network) is a new optical fiber access technology that aims to provide higher bandwidth and lower latency to meet the needs of future digital applications. 50G PON draws on existing PON technologies (such as GPON and EPON) and combines it with the latest optical communication technology to achieve a leap in performance improvement1.
Here are some key features of 50G PON technology:
· Rate bandwidth: The downlink rate of 50G PON reaches 50 Gbps, which is 5 times higher than the previous generation. In terms of uplink rate, ITU defines three rates: 12.5G/25G/50G, which are suitable for different business scenarios.
· Compatibility and coexistence: 50G PON can coexist with existing GPON, XG (S)-PON, 10G EPON, etc., achieving smooth upgrades and protecting operators' investments. This is crucial for seamlessly upgrading existing services to 50G PON.
· Latency and encryption: 50G PON has certain requirements for latency and encryption, which is especially meaningful for industrial manufacturing and 5G backhaul scenarios. Timing accuracy and encryption are security requirements and will not affect the network experience.
In short, 50G PON, as the next generation of optical fiber access technology, will provide users with more efficient and reliable communication services and help the development of a digital society.
50G-PON (50 Gigabit Passive Optical Network), as the next generation optical fiber access technology, has comprehensive improvements in high bandwidth, low latency and channelization capabilities, and is suitable for a variety of application scenarios. The following are some main application scenarios of 50G-PON:
· Home ultra-high broadband service access:
As home business traffic continues to grow, users have put forward higher requirements for the bandwidth and latency of broadband service access.
50G-PON can meet the needs of home users for large bandwidth (200Mbps~4Gbps) and low latency (10~5ms), and support cloud VR, online games, online education, smart home and other services.
· Enterprise/park information construction:
50G-PON can be applied to the information construction of enterprises and parks to meet the needs of high-quality broadband access.
Supports diversified applications such as internal office, video conferencing, and cloud services.
· Industrial manufacturing and 5G backhaul scenarios:
The low latency characteristics of 50G-PON are meaningful for industrial manufacturing and 5G backhaul scenarios.
Provide high-speed and reliable access for industrial automation, robot control, remote monitoring, etc.
· Government and City Digital Infrastructure:
50G-PON can be used in the construction of government agencies and urban digital infrastructure.
Supports data transmission in areas such as smart cities, public safety, and intelligent transportation.
In short, 50G-PON, as the next generation of optical fiber access technology, will provide users with more efficient and reliable communication services in multiple fields.
50G PON (50 Gigabit Passive Optical Network) will develop and become popular around the world faster than previous PON technology, making ubiquitous 10G faster a reality. This technology has the following key features:
· Rate bandwidth: The downlink rate of 50G PON reaches 50 Gbps, which is 5 times higher than the previous generation. In terms of uplink rate, ITU defines three rates: 12.5G/25G/50G, which are suitable for different business scenarios 1.
· Compatibility and coexistence: 50G PON can coexist with existing GPON, XG (S)-PON, 10G EPON, etc., achieving smooth upgrades and protecting operators' investments. This is crucial for upgrading existing services to 50G PON without any awareness1.
· Latency and encryption: 50G PON has certain requirements for latency and encryption, which is especially meaningful for industrial manufacturing and 5G backhaul scenarios. Timing accuracy and encryption are security requirements and will not affect the network experience.
The white paper predicts that 50G PON will be put into commercial use in 2024 and maintain a high-speed development momentum in the next decade. Many operators around the world have completed 50G PON technology verification and released 50G PON sample sites, including China Telecom, China Mobile, China Unicom, Swisscom, France Telecom, Telefonica, Telecom Italia, Saudi Telecom, Qatar Ooredoo and Finland Lounea. These efforts will help promote the development of my country's optical fiber communication technology and provide faster and more reliable communication services for the future digital society.
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ltem |
US0-wide |
US1-wide |
US0-narrow |
US1-narrow |
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10G uplink |
Pending |
Pending |
In discussion |
In discussion |
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25G uplink |
Pending |
Pending |
In discussion |
Pending |
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50G uplink |
Not discussed |
Not discussed |
In discussion |
In discussion |
As the next generation of optical fiber access technology, 50G-PON has high bandwidth, low latency and comprehensive improvement of channelization capabilities, and will play an important role in the future digital society. The following are some key points about the development prospects of 50G-PON technology:
· The standard is clear: ITU-T has released the 50G PON standard, defining it as the next-generation PON standard after 10G PON. This provides a clear technical foundation for the application and commercialization of 50G-PON
· Industrial support: The three major domestic operators (China Telecom, China Unicom, China Mobile) as well as mainstream equipment manufacturers and chip suppliers actively support and participate in the 50G PON standard. Operators in many places have begun to verify the application of 50G PON, and the industry chain is gradually maturing.
· Rich application scenarios: 50G-PON will be widely used in homes, enterprises, industrial manufacturing, medical care, smart cities and other fields. It can meet the needs of diverse applications such as high-definition video, naked-eye 3D, holographic imaging, AI quality inspection, and smart transportation.
· Technological innovation: 50G-PON not only provides high bandwidth, but also supports symmetric bandwidth to meet the needs of different services. It will become the new base of the digital economy and promote the evolution of broadband networks.
In short, 50G-PON has broad prospects and will provide users with more efficient and reliable communication services and help the development of a digital society.
Optical Fiber Online News, in April 2024, China Telecom Research Institute successfully completed laboratory technical tests of localized 50G-PON equipment for multiple domestic mainstream equipment manufacturers, focusing on verifying uplink dual-rate reception and multi-service carrying capabilities.
50G-PON technology is already in the small-scale application verification stage. Facing future large-scale commercialization, the domestic industry is solving key technical and engineering issues such as uplink multi-rate reception, 32dB optical power budget, and miniaturization of 3-mode OLT optical modules. It is also actively Promote the localization process. In February this year, based on the development and application needs of the domestic 50G-PON industry, China Telecom Research Institute proposed for the first time in ITU-T that uplink convergence to 25G/50G uplink dual-rate reception capabilities. This test focused on verifying this capability, and the throughput and business stability met expectations. In addition, when most equipment operates at asymmetric rates, the uplink optical power budget has reached Class C+ level (32dB), laying the foundation for subsequent 25G/50G dual-rate to meet Class C+ level. This test also verified 50G-PON’s support for new service capabilities such as determinism.
The 50G-PON equipment tested this time is based on a new domestic hardware system. The localization rate has reached more than 90% in general, and some manufacturers can reach 100%. China Telecom Research Institute will continue to work with partners to promote the localization and controllability of the 50G-PON end-to-end industry chain, solve the key technologies and engineering capabilities required for large-scale commercialization, and conduct 50G-PON field trials for various business scenarios. Meet the access and carrying requirements for future 10 Gigabit ultra-broadband smart applications.
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