AI workloads are exploding, cloud services are expanding globally, and real-time applications—from video conferencing to autonomous vehicles—are no longer futuristic novelties. But behind this digital ...

We demonstrate a 1,024×1,024 wavelength-routing optical switch with switching time under 18μs for 256-Gb/s DP-QPSK signals. Wavelength selection at the receivers is achieved by fast widely-tunable ...