Figure 1 (IMAGE)

Compuscript Ltd

Figure 1

Caption

All-optical transcendental equation solver. (A) schematic diagram of the all-optical transcendental equation solver. (B) Top-view SEM image of the all-optical transcendental equation solver, where the scale bar is 100 μm. Here, the white dotted lines mark the five layers for waveform discretization, and the red dotted lines separate the three layers of the optical CNN structure. (C) Output light intensity distribution in the output waveguides (k = 1.67). The arrows in the figure correspond to the locations of the solutions. The horizontal axis is the number of discrete waveguides, the vertical axis on the right represents the output signal intensity, and the vertical axis on the left gives the deviation between the experimental output signal and the theoretical value. (D) A graphic representation of solution deviation. The horizontal axis labels the individual solutions, and the vertical axis represents three values of the parameter k. The shade of the color indicates the magnitude of the deviation.

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