用于SR应用的共封装光学器件中的VCSEL.pdf

1、OCP Global Summit October 18,2023|San Jose,CAVipul Bhatt,CoherentFrank Flens,CoherentVCSELs in Co-Packaged Optics for Short-Reach ApplicationsMultimode Transceivers Have a Track Record of Success Proportions of various transceiver types,historic and projectedMultimode remains significantSource:Multi

2、modeMultimodeMultimodeMultimode Because Short Reach and Multimode are Made for Each OtherProperties of multimode opticsRequirements of short-reach applicationsVCSELLEDEdge-Emitting LaserLarge tolerances,low power,low complexity,high yields(margins)Multimode Specs Have High Production YieldsOMA outer

3、,each lane,minFor TDECQ 1.8 dBFor 1.8 dB TDECQ 4.4-2.6-4.4+TDECQTDECQ,each lane(max)4.4RS,each lane(max)For TECQ 1.8 dBFor 1.8 dB TECQ 4.4-4.4-6.2+TECQSRS,each lane(max)-1.8Power Budget(for max TDECQ)6.2Channel Insertion Loss1.7Penalties(for max TDECQ)4.5Power budgetTransmitterReceiverBudgetEye Clos

4、ure(dB),TECQor TDECQ1.8-6.2+TECQ4.4-4.4-2.6-4.4+TDECQ0-6.2TDECQ max=4.4ChIL+addl penalties=1.8RSTxOMA minExample:IEEE 800G-VR8(50 m on OM4)dBmFlexibility,Margin.By Design.Cost Improves with Volume;Volume Requires MarginCPO Needs Additional Link Power Budget for IEEE TP2&TP3 ComplianceMOTION I:Multim

5、ode CPO Research Project800G,16 fibers x 56G NRZ per fiber 1MOTION 1st-generation modulePowerTM10 Processor&MOTION50 Gb/s NRZ data51.28G clockNRZ dataAcknowledgment:“The information,data,or work presented herein was funded in part by the Advanced Research Projects Agency-Energy(ARPA-E),U.S.Departmen

6、t of Energy,under Award Number DE-AR0000846.The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.”MOTION II:Multimode CPO Research Project3.2T,16 fibers x 2 per fiber x 112G PAM4 per 21.15 pJ/bit including