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Proceedings Paper

Si photonic wire waveguides
Author(s): Toshihiko Baba
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Paper Abstract

Due to their ultrahigh index contrast structure, Si photonic wire waveguides realize various micro-components, which enable us to design and fabricate compact photonic devices and circuits. We have already demonstrated them theoretically and experimentally in some journal papers and two SPIE proceedings. In this work, I pick up other two topics; one is the polarization crosstalk, and the other is a Mach-Zehnder interferometer. The former will be a significant problem that degrades the performance of functional circuits based on polarization-dependent devices. It was experimentally meas-ured, and its reduction method was theoretically investigated by the three-dimensional finite-difference time domain method. The latter device is a basic element of functional circuits. By employing micro-bends and micro-couplers, a high extinc-tion ratio of over 15 dB and a large diffraction order of 300 were achieved within a small foot space of 20 times 20 square microns.

Paper Details

Date Published: 8 October 2004
PDF: 8 pages
Proc. SPIE 5515, Nanoengineering: Fabrication, Properties, Optics, and Devices, (8 October 2004); doi: 10.1117/12.559215
Show Author Affiliations
Toshihiko Baba, Yokohama National Univ. (Japan)

Published in SPIE Proceedings Vol. 5515:
Nanoengineering: Fabrication, Properties, Optics, and Devices
Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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