AI-optimised tuneable sources for bandwidth-scalable, sub-nanosecond wavelength switching

Wavelength routed optical switching promises low power and latency networking for data centres, but requires a wideband wavelength tuneable source (WTS) capable of sub-nanosecond at every node. We propose hybrid WTS that uses time-interleaved lasers, each gated by semiconductor amplifier, where the performance device is optimised using artificial intelligence. Through simulation experiment we demonstrate record switch times below 900 ps across 6.05 THz (122×50 GHz) continuously bandwidth. A method further bandwidth scaling evaluated compared to alternative designs.