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essay · forthcoming · apr 2026 · 12 min read

Why RF engineers should be watching CPO

A primer for people who draw transmission lines for a living, on the electromagnetic story underneath co-packaged optics.

Why RF engineers should be watching CPO

Forthcoming.

A primer aimed at people who already think in S-parameters: what changes when the signal leaves the die as light instead of as a transmission-line mode, and what RF intuition still applies on the other side of the coupler.

  • #cpo
  • #photonics
  • #rf
  • #primer