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.
|Journal||Journal of Physics: Photonics|
|Publication status||Published - 15 Dec 2020|
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Funding: This project was supported by the Royal Academy of Engineering under the Research Fellowship scheme
- Neuromorphic computing
- Non-linear optics
- Signal processing