Fig. 4: Optical cross-layer transmission of equivalent electrical signal by hardware-software co-design. | Nature Communications

Fig. 4: Optical cross-layer transmission of equivalent electrical signal by hardware-software co-design.

From: Cross-layer transmission realized by light-emitting memristor for constructing ultra-deep neural network with transfer learning ability

Fig. 4

a Schematic diagram of two neural networks sharing input layer and hidden layer 1, using optical signals and electrical signals to transmit equivalent information. b Circuit diagram of FCN-1 and FCN-2. c Hardware circuit and N-LEM array for realizing synaptic connection between hidden layers 1 and 2. d Schematic diagram of network accuracy decreasing with the increase of categories. e Inter-layer weight distribution (between hidden layers 1 and 2) obtained from the training of four digital classification tasks. f The accuracy of FCN-1 and FCN-2 obtained by writing the weight of each epoch into FPGA and circuit changes.

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