Multi-channel optical neuromorphic processor for frequency-multiplexed signals

Here we develop the first optical neuromorphic processor for frequency-multiplexed and multi-channel signals and demonstrate its application for orthogonal frequency-division multiplexing and wavelength-division multiplexing. The presented architecture supports multichannel operation through incorporation of the optical Fourier transform and dispersion-managed fiber echo state network analogue enabling processing of dual-quadrature high bandwidth signals. We demonstrate applicability of the design for prediction and equalization tasks. The proposed technology paves the way to multi-channel neuromorphic signal processing.

Automated summary

This study developed the first optical neuromorphic processor for handling frequency-multiplexed and multi-channel signals, demonstrating its capabilities in orthogonal frequency-division multiplexing and wavelength-division multiplexing. The proposed architecture supports multi-channel operation through optical Fourier transform and dispersion-managed fiber echo state network analog, enabling processing of high-bandwidth signals and paving the way for multi-channel neuromorphic signal processing.