Lightmatter Joins NVIDIA NVLink Fusion
BenBajarin · x · 2026-07-14
Ben Bajarin noted that there is "a lot to like" about Lightmatter. According to the quoted content: Lightmatter has joined NVIDIA's NVLink Fusion ecosystem and will provide CPO/NPO products compatible with NVIDIA's optical interconnect and SerDes technologies.
Key takeaways include:
- By adapting its bidirectional optical link architecture to NVLink Fusion, Lightmatter aims to reduce fiber and connector requirements by up to 50%.
- Simultaneously, this approach seeks to improve bandwidth and energy efficiency.
- The partnership means hyperscalers and AI chip developers can connect their proprietary XPUs to NVIDIA's switch chips, integrating silicon from multiple suppliers into a unified NVLink AI infrastructure.
- This also marks the transition of Lightmatter's Passage CPO/NPO from a standalone optical interconnect solution toward a commercialized platform.
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