Scalable and Fast Optical Circuit Switch Created with Silicon-Photonic Tunable-Filter-Based Local Oscillator Bank and Colorless Coherent Detection

We propose a large-scale fast optical circuit switch created with Silicon-photonic tunable-filter-based LO bank and colorless coherent detection. Experiments verify 475.1-Tbps switch bandwidth (1,856 × 1,856 at 256 Gbps) and switching times under 3.52 μs.