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Programmable photonic neural networks combining WDM with coherent linear optics.
- Source :
-
Scientific Reports . 4/4/2022, Vol. 12 Issue 1, p1-13. 13p. - Publication Year :
- 2022
-
Abstract
- Neuromorphic photonics has relied so far either solely on coherent or Wavelength-Division-Multiplexing (WDM) designs for enabling dot-product or vector-by-matrix multiplication, which has led to an impressive variety of architectures. Here, we go a step further and employ WDM for enriching the layout with parallelization capabilities across fan-in and/or weighting stages instead of serving the computational purpose and present, for the first time, a neuron architecture that combines coherent optics with WDM towards a multifunctional programmable neural network platform. Our reconfigurable platform accommodates four different operational modes over the same photonic hardware, supporting multi-layer, convolutional, fully-connected and power-saving layers. We validate mathematically the successful performance along all four operational modes, taking into account crosstalk, channel spacing and spectral dependence of the critical optical elements, concluding to a reliable operation with MAC relative error < 2 % . [ABSTRACT FROM AUTHOR]
- Subjects :
- *OPTICS
*OPTICAL elements
*PHOTONICS
*MULTIPLICATION
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 12
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Scientific Reports
- Publication Type :
- Academic Journal
- Accession number :
- 156108921
- Full Text :
- https://doi.org/10.1038/s41598-022-09370-y