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http://dx.doi.org/10.3807/KJOP.2004.15.1.022

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

박보근 (광운대학교 전자공학부/전자통신공학과)
정영철 (광운대학교 전자공학부/전자통신공학과)
Publication Information
Korean Journal of Optics and Photonics / v.15, no.1, 2004 , pp. 22-27 More about this Journal
Abstract
In this paper, we designed a mode size converter to reduce coupling loss between optical waveguide and single mode fiber. The proposed mode converter is composed of periodically segmented tapered waveguide to achieve small size and easy fabrication. For the optimally designed mode size converter at 1550nm, the taper length is 500(equation omitted), the segmentation period 5ß:, the waveguide width of fiber contact section 1.3ß:, and duty cycle 0.95. The coupling loss of the optimized mode size converter is 0.33㏈/point, which is 1.27㏈/point lower than that without the mode size converter.
Keywords
optical waveguide; periodically segmented waveguide; mode size converter; tapered waveguide; lateral taper.;
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