Polarization-Diversity 32 × 32 Si Photonics Switch with Non-Duplicate Diversity Circuit in Double-Layer Platform

We demonstrate a polarization-diversity 32×32 Si-photonics switch by newly introducing a SiN overpass circuit onto our non-duplicate polarization-diversity path-independent insertion-loss switch circuit. An average PDL in a sampled connection setting was evaluated as 3.2 dB.