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Proceedings Paper

Si-based photonic crystals and photonic bandgap waveguides
Author(s): Masaya Notomi; Akihiko Shinya; K. Yamada; Jun-Ichi Takahashi; C. Takahashi; Itaru Yokohama
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Paper Abstract

We experimentally demonstrate the structural tuning of the waveguiding modes of line defects in photonic crystal slabs. By tuning the defect widths, we realized efficient single-mode waveguides that operate within photonic band gap frequencies in SOI photonic crystal slabs. The observed waveguiding characteristics agree very well with 3D finite- difference time-domain calculations. The propagation loss of the line defect waveguides is experimentally determined to be 6 dB/mm. In addition, we measure group velocity dispersion of line defects by using Fabry-Perot resonance of the sample. Extremely large group dispersion is observed, and the traveling speed of light is reduced down to 1/100 of the light velocity in air.

Paper Details

Date Published: 25 April 2002
PDF: 13 pages
Proc. SPIE 4655, Photonic Bandgap Materials and Devices, (25 April 2002); doi: 10.1117/12.463864
Show Author Affiliations
Masaya Notomi, NTT Basic Research Labs. (Japan)
Akihiko Shinya, NTT Basic Research Labs. (Japan)
K. Yamada, NTT Telecommunications Energy Labs. (Japan)
Jun-Ichi Takahashi, NTT Telecommunications Energy Labs. (Japan)
C. Takahashi, NTT Telecommunications Energy Labs. (Japan)
Itaru Yokohama, NTT Basic Research Labs. (Japan)


Published in SPIE Proceedings Vol. 4655:
Photonic Bandgap Materials and Devices
Ali Adibi; Axel Scherer; Shawn-Yu Lin, Editor(s)

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