nonlinear waveguides

Nonlinear waveguides refer to optical devices or structures that guide and manipulate light waves in a way that the properties of the waves change as they propagate through the material. Unlike linear waveguides, which maintain a constant behavior, nonlinear waveguides exhibit nonlinear optical effects, such as frequency conversion or self-phase modulation, resulting in the modification of the light's amplitude, phase, or frequency while remaining confined within the guide.

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