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Uniform electric field in waveguide core may have some importance in application for various waveguide devices. It has been shown that uniform electric field can occur in and only in nonlinear waveguide structures with Kerr-like or saturable media. In this paper, three-layer slab optical waveguide for which the nonlinear permittivity of film and claddings take the same power-law form ε~|E| δ ...
Uniform electric field exists only in nonlinear waveguide structures. Theoretical analysis and numerical results for typical examples are presented for three-layer nonlinear slab waveguides to find the appropriate structures in which the core electric field can become uniform at appropriate optical power. It is shown that there are five kinds of such structures. The electric field profiles are plotted...
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