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Lightmatter joins the Open CPX Multi-Slice Architecture initiative and unveils its Passage L20 CPX optical engine that halves fiber cabling by combining transmit and receive on a single strand.

Reduces optical network complexity and power draw in AI scale-up topologies, accelerating adoption of photonic interconnects over copper.
Trade pressSlicast · September 18, 2026 at 04:36 UTC · Global · Source: HPCwire
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Lightmatter joins the Open CPX Multi-Slice… · Slicast