Posted 3/25/2024, 11:45:00 PM
Coherent Unveils 300-Port Optical Switch for High-Density AI Clusters
- Coherent unveiled a new optical circuit switch for high-density AI clusters with 300 input/output ports
- The switch handles switching entirely optically for high bandwidth, low latency, and lower cost
- Optical switching is more reliable for very large clusters where mean time to failure is low
- Google uses similar optical switches to interconnect TPU pods with thousands of TPUs
- Optical circuit switching is still new in datacenters, so far only adopted at scale by Google