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Fields of nonlinear cladding optical waveguides excited by butt-coupled linear waveguides at medium power levels

机译:对接耦合线性波导在中等功率水平下激发的非线性包层光波导的场

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摘要

The evolution of medium power fields of nonlinear optical waveguides is investigated numerically. The analysis method is based on mode matching of local normal modes of bounded waveguides. Nonlinear cladding waveguides are butt-coupled to linear waveguides. The path of a medium power level beam winds between the film and the nonlinear cladding. The input beam travels toward the nonlinear modal field, at which point the beam is not stationary. After the beam passes the location, it is forced to turn back. The lateral shift of an incident waveguide affects the path of a beam. Saturation and linear absorption lessens the oscillation of a winding path.
机译:数值研究了非线性光波导中功率场的演化。该分析方法基于有界波导的局部法线模式的模式匹配。非线性包层波导对接耦合到线性波导。中功率水平光束的路径在薄膜和非线性包层之间缠绕。输入光束向非线性模态场传播,此时光束不平稳。光束通过位置后,将被迫向后转。入射波导的横向偏移会影响光束的路径。饱和和线性吸收可减轻绕组路径的振荡。

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