Si-based photonic crystals and photonic bandgap waveguides

Masaya Notomi; Akihiko Shinya; K. Yamada; Jun-Ichi Takahashi; C. Takahashi; Itaru Yokohama

doi:10.1117/12.463864

25 April 2002 Si-based photonic crystals and photonic bandgap waveguides

Masaya Notomi, Akihiko Shinya, K. Yamada, Jun-Ichi Takahashi, C. Takahashi, Itaru Yokohama

Proceedings Volume 4655, Photonic Bandgap Materials and Devices; (2002) https://doi.org/10.1117/12.463864
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

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.

Citation Download Citation

Masaya Notomi, Akihiko Shinya, K. Yamada, Jun-Ichi Takahashi, C. Takahashi, and Itaru Yokohama "Si-based photonic crystals and photonic bandgap waveguides", Proc. SPIE 4655, Photonic Bandgap Materials and Devices, (25 April 2002); https://doi.org/10.1117/12.463864

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