Guess the era: multimode graded-index glass waveguide optical backplane

jwt0625 · x · 2026-10-26

A quiz post: guess the era and propagation loss (dB/cm) of this multimode graded-index glass waveguide optical backplane without searching.

Images come from early electro-optical backplane research: a fabricated backplane, the SEPPLANE2 prototype with dual glass waveguide panels and pluggable optical connectors, and a diagram of optical engines interconnected over an integrated waveguide backplane.

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