Home › Technologies › Co-Packaged Optics
Co-Packaged Optics
Technology
Networking
Light brought onto the switch package — the next power saver.
You're looking at a technology record: a building block of AI hardware — what it does, who makes it, and which chips and systems use it.
CPO integrates the optical engines beside the switch ASIC itself, cutting the electrical distance and roughly 3x-ing interconnect power efficiency (vendor figures). NVIDIA's Quantum-X and Spectrum-X Photonics switches (announced 2025) and Broadcom's Bailly lead the transition; TSMC's COUPE process underpins several designs.
How this connects to the rest of the stack
This record's links at a glance — click a group to jump to it.
Successor to
Related
Sources
NVIDIA silicon photonics announcement ↗
Record reviewed as of 2026-01-15 — see Methodology.