Nanotechnologies of photonic crystals and quantum dots for ultrasmall and ultrafast all-optical switches

Kiyoshi Asakawa; Yoshimasa Sugimoto; H. Nakamura; Naoki Ikeda; Y. Tanaka; Y. Nakamura; S. Ohkouchi; Kozyo Kanamoto; Hiroshi Ishikawa; Y. Watanabe; K. Inoue; H. Sasaki; Koji Ishida

doi:10.1117/12.531187

25 March 2004 Nanotechnologies of photonic crystals and quantum dots for ultrasmall and ultrafast all-optical switches

Kiyoshi Asakawa, Yoshimasa Sugimoto, H. Nakamura, Naoki Ikeda, Y. Tanaka, Y. Nakamura, S. Ohkouchi, Kozyo Kanamoto, Hiroshi Ishikawa, Y. Watanabe, K. Inoue, H. Sasaki, Koji Ishida

Author Affiliations +

Proceedings Volume 5277, Photonics: Design, Technology, and Packaging; (2004) https://doi.org/10.1117/12.531187
Event: Microelectronics, MEMS, and Nanotechnology, 2003, Perth, Australia

Abstract

We have fabricated several two-dimensional photonic-crystal (2DPC) slab waveguides by using fine EB lithography and dry etching. The 2DPC waveguides include straight, bend and directional coupler on the GaAs/AlGaAs substrate as an application to the ultra-small and ultra-fast all-optical switching device (PC-SMZ). Site-controlled InAs quantum dots (QDs) responsible for nonlinear phase shift in the PC-SMZ have been investigated by developing a nano-probe assisted in-situ process. Optical linear and nonlinear properties of stacked QDs were characterized. The result exhibited the π/2 phase shift required for the SMZ-type optical switching operation. These results are capable of achieving the PC-SMZ.

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Kiyoshi Asakawa, Yoshimasa Sugimoto, H. Nakamura, Naoki Ikeda, Y. Tanaka, Y. Nakamura, S. Ohkouchi, Kozyo Kanamoto, Hiroshi Ishikawa, Y. Watanabe, K. Inoue, H. Sasaki, and Koji Ishida "Nanotechnologies of photonic crystals and quantum dots for ultrasmall and ultrafast all-optical switches", Proc. SPIE 5277, Photonics: Design, Technology, and Packaging, (25 March 2004); https://doi.org/10.1117/12.531187

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