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Integrated Optics at Scale for AI Infrastructure: From 51.2T CPO Validation to Meta's 102.4T Integrated Optics Switch#

OCP Global Summit 2026 digest Program Core pick 12–15 October 2026

Abstract Recording

Granthana Rangaswamy (Meta), Siamak Amiralizadeh (Meta), Xu Wang (Meta Platforms, Inc.)

Play the recording: Integrated Optics at Scale for AI Infrastructure: From 51.2T CPO Validation to Meta's 102.4T Integrated Optics Switch

  • Why: The strongest quantified case at this conference for integrated optics over pluggables — real power and reach numbers from a platform moving from 51.2T validation into a 102.4T product, at the exact 200G/lane inflection point where pluggables struggle.
  • What: A 1.5OU, 100% liquid-cooled, fanless blade with 64 optical ports via 16 four-port MMC interfaces and 16 ELSFP external-laser modules, delivering ~60% optics power reduction, ~30% system power reduction, and 500m reach versus pluggables (from abstract only).
  • How: Optical engines placed on (CPO) or near (NPO) the ASIC substrate, eliminating pluggables; decoupling the laser lifecycle from the ASIC via ELSFP external lasers; fanless liquid cooling to reduce fiber contamination risk.
  • Where applicable: Meta platform, but the power/reach trade-offs and the laser-decoupling architecture are broadly applicable to any operator weighing CPO/NPO at 102.4T; built on prior-generation 51.2T validation, so the numbers have production lineage.