偶数乗の屈折率分布をもつ2分岐スラブ形導波路の伝搬解析

概要

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The electromagnetic wave propagation in a branching slab waveguide were analyzd by the mode theory in which the refractive index of the waveguide was expressed by a formula with 2v power with respect to the thickness. It was found that the radiated field arising from the integral along the branch cut is much smaller than the mode field and scarcely disturbs the wave propagation. A finite difference beam propagation method (FD-BPM) based on the guided wave obtained was also investigated, and the propagation characteristics obtained from FD-BPM were compared with those the mode theory. The results from both methods agreed well each other.
明治大学の論文