Open AccessMulti-channel optical neuromorphic processor for frequency-multiplexed signals
Author(s) -
Mariia Sorokina
Publication year - 2020
Publication title -
jphys photonics
Language(s) - English
Resource type - Journals
ISSN - 2515-7647
DOI - 10.1088/2515-7647/abcb72
Subject(s) - neuromorphic engineering , multiplexing , computer science , electronic engineering , bandwidth (computing) , frequency division multiplexing , channel (broadcasting) , signal processing , orthogonal frequency division multiplexing , computer architecture , digital signal processing , computer hardware , telecommunications , engineering , artificial intelligence , artificial neural network
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.