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首页> 外文期刊>Optical Engineering >Amplitude-identical nonlinear TE{sub}0 fundamental wave in a symmetric periodic refractive index structure with two nonlinear claddings
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Amplitude-identical nonlinear TE{sub}0 fundamental wave in a symmetric periodic refractive index structure with two nonlinear claddings

机译：Amplitude-identical nonlinear TE{sub}0 fundamental wave in a symmetric periodic refractive index structure with two nonlinear claddings

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摘要

Expressions describing field profile, dispersion relation, and propagation power are presented fornonlinear TE waves in a symmetric periodic refractive index structure with two nonlinear claddingsbeside the guide core. In terms of these formulas, the shape of the field profile of the symmetricnonlinear TE{sub}0 fundamental wave is investigated. We find that three shapes of the field profilesof the symmetric nonlinear TE{sub}0 fundamental wave exist in the symmetric periodic refractiveindex structure, and one of them has identical amplitudes in the guide core. The effects of thestructural parameters on the amplitude-identical nonlinear TE{sub}0 fundamental wave are analyzed,and relative field profiles are illustrated. The results show that when the structural parameters(e.g.,the core thickness, the well number, and the ratio of the well thickness to the periodic length)and the propagation power (and hence the effective refractive index) are selected at appropriatevalues, the amplitude-identical nonlinear TE{sub}0 fundamental wave can be formed in thesymmetric periodic refractive index structure with two nonlinear claddings beside the guide core.

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