Reduce Footprints of Multiport Interferometers by Cosine-Sine-Decomposition Unfolding

Published in OFC, 2022

Recommended citation: LIU, Yinyi, et al. "Reduce Footprints of Multiport Interferometers by Cosine-Sine-Decomposition Unfolding." Optical Fiber Communication Conference and Ehibition (OFC) (2022). https://ieeexplore.ieee.org/abstract/document/9383800

We present a novel 3D-unfolding method based on Cosine-Sine-Decomposition (CSD) to enable an alternative arrangement of unitary blocks towards plane normal, which reducestheplanarfootprintsofuniversalmultiportinterferometersexponentially.