Enabling Optical Modulation Format Identification Using an Integrated Photonic Reservoir and a Digital Multiclass Classifier

We numerically show modulation format identification in the optical domain using Silicon-on-Insulator-based Photonic-Integrated-Circuit (PIC) reservoir. We fabricate the reservoir’s building-blocks and use the experimental results to model the PIC layout. Identification of 32 GBd single-polarization signals of OOK, PAM4, BPSK and QPSK is successfully achieved.