Fig. 4: Experimentally observed output power saturation in the topological boundary waveguide. | Nature Communications

Fig. 4: Experimentally observed output power saturation in the topological boundary waveguide.

From: A topological nonlinear parametric amplifier

Fig. 4

a The output power versus input power at different temporal pulse widths of 5, 1 ps, and 500 fs. b The output power of 1 ps pulses at the boundary waveguide and the 1st and 2nd neighboring waveguides, where the points are measured data of output powers vs. input powers and solid lines correspond to theoretical results calculated using the nonlinear Schrödinger equation.

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