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The Register · October 6, 2026 · On the brief until October 20, 2026

Altman-backed Volantis reveals plan to vault the memory wall by baking photonics into AI accelerators

Electrical EngineeringMaterials SciencePhysics
THE AI ANGLE
Driving memory bandwidth demands in accelerator hardware

Volantis designed an AI accelerator that uses an optical interposer with integrated micro-VCSELs to connect memory to compute chips. This design lets engineers place memory centimeters away from the processing die, bypassing the perimeter limits of electrical interconnects to raise package bandwidth and capacity.

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THE TEACHING ANGLE
Engineers must balance the reliability gains of running many slower micro-VCSEL links against the integration challenges and high total power of optical interposers.

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