Session23_Next-Generation Optical Transceivers.pdf

1、ISSCC 2026SESSION 23Next-Generation Optical Transceivers23.1:A 32Gb/s/256Gb/s/Fiber Half-Rate Bandpass-Filtered Clock-Forwarding DWDM Optical Link in a 3D-Stacked 7nm EIC/65nm PIC Technology 2026 IEEE International Solid-State Circuits Conference1 of 32A 32Gb/s/256Gb/s/Fiber Half-Rate Bandpass-Filte

2、red Clock-Forwarding DWDM Optical Link in a 3D-Stacked 7nm EIC/65nm PIC TechnologySanquan Song1,Nandish Mehta1,Nikola Nedovic1,Angad Rekhi1,Georgios Kalogerakis1,Li Xu1,Brian Zimmer1,Stephen G.Tell2,Yoshi Nishi1,Xi Chen1,Ward Lopes1,Benjamin G.Lee3,Thomas H.Greer III2,C.Thomas Gray21Nvidia,Santa Cla

3、ra,CA,2Nvidia,Durham,NC,3Nvidia,Ridgefield,CTISSCC 202623.1:A 32Gb/s/256Gb/s/Fiber Half-Rate Bandpass-Filtered Clock-Forwarding DWDM Optical Link in a 3D-Stacked 7nm EIC/65nm PIC Technology 2026 IEEE International Solid-State Circuits Conference2 of 32Outline Motivation System Architecture Jitter Mo

4、deling of Clock Forwarding DWDM Links Design DetailsCircuit ArchitectureTX CircuitRX CircuitThermal Tuning Circuit Implementation and Measurement Results Conclusions23.1:A 32Gb/s/256Gb/s/Fiber Half-Rate Bandpass-Filtered Clock-Forwarding DWDM Optical Link in a 3D-Stacked 7nm EIC/65nm PIC Technology

5、2026 IEEE International Solid-State Circuits Conference3 of 32Scaling and AI Density Depend on Optical ConnectivityOptical network power represents 7%of compute resources and going upTraditional Cloud DatacenterAI Factory512KGPU40 MWTRX Power100KServers2.3 MWTRX PowerA Watt Saved on Networking can b

6、e Spent on Compute!Edward Lee,ECOC 2025 Plenary23.1:A 32Gb/s/256Gb/s/Fiber Half-Rate Bandpass-Filtered Clock-Forwarding DWDM Optical Link in a 3D-Stacked 7nm EIC/65nm PIC Technology 2026 IEEE International Solid-State Circuits Conference4 of 32Optics on Interposer Extend the reach of C2C-USR links w