Bidirectional Optics for AI Scale-Up Networks: One Fiber, Two Directions

Copper limits how many GPUs you can connect in a scale-up domain. Optics extends the reach, but a single domain can still need 260,000 fibers and tens of thousands of connectors, and each one is a potential point of failure. In this overview, Taylor Groves of Lightmatter explains how bidirectional link architecture cuts the connectors and fibers in half.

In this video:

• Why copper backplanes limit the size of an AI scale-up system
• How optics breaks those limits, and where fiber and connector counts become the next challenge
• How bidirectional links halve the connectors, fibers, and potential points of failure
• Lightmatter’s NPO, CPO, and CPX bidirectional link architectures

Read the technical brief and full analysis.