Salience Labs' all-optical circuit switch connects AI clusters over optical paths rather than electrical switching. The company launched a 32-port all-optical silicon photonic switch in March 2026 and showed a 64-port version at ECOC 2026, with 128-port and 256-port versions in development.
Company figures include latency under 10 nanoseconds and testing at 200G per lane, which have not been independently verified. Cignal AI projects the optical circuit switching market will exceed $8 billion by the end of the decade.