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Design and analysis of a mode size converter composed of periodically segmented taper waveguide surrounded by trenches  

Park Bo Gen (Department of Electronic and Communication Engineering, Kwangwoon University)
Chung Young Chul (Department of Electronic and Communication Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.41, no.12, 2004 , pp. 43-49 More about this Journal
Abstract
In this paper, we have designed a mode size converter to reduce coupling loss between super-high delta silica optical waveguides and single mode fibers. The new mode size converter has three design aspects; periodically segmented taper waveguide for minimal size, lateral taper waveguide for simple fabrication, and surrounding trenches to improve coupling loss. In the optimal mode size converter design, coupling loss is 0.33dB/point without trenches and 0.2dB/point with trenches.
Keywords
mode size converter; periodically segmented waveguide; tapered waveguide; lateral taper; trenches;
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