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The paper presents the review of basic results which described the optical properties of novel optical filter/multiplexer constructed by multiply coupled wave-guides. For the study, a modified effective index method (MEIM), has been used. It correctly describes, in the 2D case both the phase and the group indexes in a 3D silicon wire waveguide and makes it possible to simulate complicated SOI structures...
A modified effective index method (MEIM), which correctly describes, in a 2D case, both the phase and the group indexes in a 3D photonic wire, is discussed in the paper. MEIM utilizes the combined index profile with two spatial parameters. A central part has a wire index and a width of a nearly wire height. A basic part has a width of 3D wire and a fitting index Nb. Numerical experiments by FDTD of...
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