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Proceedings Paper

Photonic crystal-based integrated optics for advanced ultra-fast all-optical signal processing
Author(s): Kiyoshi Asakawa; Yoshimasa Sugimoto
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Paper Abstract

Fundamental technologies of GaAs-based two-dimensional photonic crystals (2DPCs) and an application to ultra-small photonic integrated devices/circuits including future ultra-fast all-optical signal processing devices are reviewed. The review is focusing on the precise nano-fabrication of air-hole lattices and resultant excellent 2DPC waveguide characteristics. Demonstrated results include low propagation loss, high transmittance spectra with large out-of band attenuation in a near infrared region, wavelength-selective directional coupler operation, successful experimental simulation on an optical interference in intentionally designed asymetric MZ waveguide pattern and large nonlinear phase-shift appearance at low excited energy. Application of these results to an ultra-small and ulta-fast symmetric Mach-Zehnder type all-optical switch resulted in the measured switching window width of 15 ps and switching energy of 100 fJ at a 1.3-μm wavelength.

Paper Details

Date Published: 30 September 2005
PDF: 12 pages
Proc. SPIE 5956, Integrated Optics: Theory and Applications, 59560U (30 September 2005); doi: 10.1117/12.629087
Show Author Affiliations
Kiyoshi Asakawa, Univ. of Tsukuba (Japan)
Yoshimasa Sugimoto, National Institute of Advanced Industrial Science and Technology (Japan)
Univ. of Tsukuba (Japan)

Published in SPIE Proceedings Vol. 5956:
Integrated Optics: Theory and Applications
Tadeusz Pustelny; Paul V. Lambeck; Christophe Gorecki, Editor(s)

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