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对下一代数据中心内部VCSEL-MMF链接的200G收发器的性能分析
Optics express
|September 23, 2025
概括
下一代200G收发器对于支持大型语言模型的数据中心至关重要. 本研究定义了对OM3和OM4光纤的要求并验证了其范围限制,这对于高速光学互连至关重要.
科学领域:
- 数据中心互连 互连 数据中心互连
- 光学通信是指光学通信.
- 高速网络网络的建设.
背景情况:
- 大型语言模型 (LLM) 推动了前所未有的数据中心容量,尺寸和功率效率需求.
- 光子技术,特别是光学链接,对于扩展数据中心内部连接至关重要.
- 目前的100G每车道解决方案面临局限性,需要为更高的吞吐量进行改进.
研究的目的:
- 定义下一代200G收发器 (TRX) 的要求.
- 评估200G TRXs的调制格式和均衡策略.
- 评估200G TRXs在OM3和OM4纤维上的传输性能.
主要方法:
- 统计研究分析了大量的OM3和OM4纤维性能数据集.
- 评估各种调制格式和均等化技术.
- 对200G速度的收发器设计和制造挑战的分析.
主要成果:
- 在所有短波长分割多重复合 (SWDM) 波长上,OM3光纤的最大范围为20m,OM4光纤的最大范围为30m.
- 确定了200G TRX设计和制造的关键要求.
- 验证了用于数据中心内部应用的每车道200G光学链路的可行性.
结论:
- 该研究为数据中心的200G光学收发器的要求和局限性提供了关键的见解.
- 在OM3和OM4纤维的特定范围限制范围内,每条车道可实现200G.
- 这项研究支持对AI和LLM工作负载至关重要的高速光学互连的持续发展.
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