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人工智能网络光学——大型集群的扩展.pdf

上传人: 明**** 编号:1011725 2025-12-21 18页 1.67MB

1、1Broadcom Proprietary and Confidential.Copyright 2025 Broadcom.All Rights Reserved.The term“Broadcom”refers to Broadcom Inc.and/or its subsidiaries.|Broadcom Proprietary and Confidential.Copyright 2025 Broadcom.All Rights Reserved.The term“Broadcom”refers to Broadcom Inc.and/or its subsidiaries.Oct

2、13th,2025Tzu Hao ChowBusiness Development Manager,Optical Systems DivisionOptics for AI Networks-Scaling for large clusters2Broadcom Proprietary and Confidential.Copyright 2025 Broadcom.All Rights Reserved.The term“Broadcom”refers to Broadcom Inc.and/or its subsidiaries.|The Optical Interconnect for

3、 AISpineTORSpineFront-End Network(CPU,Cloud):Optical in Aggregation BUTLow Optical BW per CPUDAC/Optical pluggablesAI Scale-Up:Predominantly Copper today with extremely high BWCopper cablesAI Scale-OutOptical From ServerOptical pluggables/CPO3Broadcom Proprietary and Confidential.Copyright 2025 Broa

4、dcom.All Rights Reserved.The term“Broadcom”refers to Broadcom Inc.and/or its subsidiaries.|3GEN 1TH4Humboldt100G/laneGEN 2TH5Bailly100G/laneWORLD CLASS COMPARISON TO PLUGGABLES100X Integration increase 3.5x Less Energy Consumption202420262028202234 Generations of Broadcom CPOGEN 3TH6Davisson200G/lan

5、eGEN 4Announced on Oct.84Broadcom Proprietary and Confidential.Copyright 2025 Broadcom.All Rights Reserved.The term“Broadcom”refers to Broadcom Inc.and/or its subsidiaries.|41 MNo Link Flaps observed in first 1 M CPO device hoursTH5-Bailly CPO Performance Results:FEC StatisticsSource:Siamak Amiraliz

6、adeh,D.Alduino,W.Zhang,V.Lowalekar,G.Wang,N.Ge,R.Zhu,N.Hoang,J.Stever,J.Xu,J.Pruitt,A.John,S.Agrawal,F.Mercado,O.Moeller,D.Young.“CPO Technology Evaluation for Hyperscale Data Center Fabric Switches.”2025.5Broadcom Proprietary and Confidential.Copyright 2025 Broadcom.All Rights Reserved.The term“Bro

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根据报告的内容,全文主要内容概括如下: 1. **光学互连在AI网络中的应用**:随着AI网络规模的扩大,光学互连技术正逐渐取代铜缆,以实现更高的带宽和能效。 2. **CPO技术优势**:CPO(Copper Pluggable)技术具有低能耗、高可靠性和高带宽密度,预计将在2026年实现超过3.5倍的能效提升。 3. **性能对比**:与插拔式模块相比,CPO在可靠性方面有显著提升,如TH5-Bailly CPO的年链路故障率(ALFR)为0.0%,而插拔式模块为0.4%。 4. **VCSEL NPO技术**:基于VCSEL的NPO(Non-Photonic Optical)技术具有高能效(约1 pJ/bit)、良好的制造可靠性和时间到市场,适用于大规模升级。 5. **未来展望**:CPO技术预计将支持高达51.2T的带宽,推动前端和扩展网络的升级,并成为大规模升级互连的关键技术。
何时铜线被光学取代?" 光学互连的未来规模?" 光学互连如何实现更大规模集群?"
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