50G-PON总结展望：标准·产业·Beyond 50G

The slide positions 50G-PON with a symmetric 50Gbps rate enabling full-duplex upload/download. It delivers 5x bandwidth density growth over the prior generation, 30% lower O&M costs, and capacity for 100,000 users per OLT.

1. 50G-PON的价值定位

• 50Gbps: 对称速率

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• 5倍: 带宽密度提升

较上一代增长

• 30%: 运维成本降低

高效运维优化

• 10万: 用户/OLT容量

大规模接入支持

The ITU-T G.hsp timeline tracks 50G-PON standard progress from 2020 (goals established) to 2024 (multi-vendor interoperability success). Key milestones include 2022 physical layer completion and 2023 system specification freeze.

2. ITU-T G.hsp标准进展

2020: G.hsp目标确立 ITU-T正式确立G.hsp标准目标，推动50G-PON发展。 2022: 50G-PON物理层完成 50G-PON物理层规格规范标准化完成。 2023: 系统规范冻结 G.hsp系统规范正式冻结，标准成熟。 2024: 多厂商互操作通过 多厂商设备互操作测试成功，加速商用落地。

Major vendors like Huawei, ZTE, and Nokia are actively building a complete 50G-PON ecosystem to mature the industry chain. Commercial progress includes China Telecom pilots and European FTTH upgrades, targeting large-scale deployment by 2025.

3. 产业生态与商用落地

Source: 全光网3.0的基石——下一代光接入网（50G-PON与更高速率PON）技术与应用

The slide outlines beyond-50G PON technologies, including 100G-PON via TWDM scheme (standardized in 2026) and 200G-PON with coherent technology. It notes challenges in device integration and power control, while envisioning Tbit/s access networks.

4. Beyond 50G技术展望

• • 100G-PON：TWDM方案，2026年标准化
• • 200G-PON：引入相干技术
• • 挑战：器件集成与功耗控制
• • 愿景：Tbit/s接入网

50G-PON leads a new era in optical access with standards and industry advancing together, as Beyond 50G prepares for launch. All-Optical Network 3.0 empowers the digital economy, urging collaboration for infinite possibilities, with thanks for listening.

5. 结语与未来愿景

50G-PON引领光接入新时代，标准产业齐头并进，Beyond 50G蓄势待发。全光网3.0赋能数字经济，携手共创无限可能！

感谢聆听！

Source: 全光网3.0的基石——下一代光接入网（50G-PON与更高速率PON）技术与应用