Applications of nonlinear effects in silicon wire waveguides - All optical modulation, wavelength conversion and quantum entanglement

K. Yamada, T. Tsuchizawa, T. Watanabe, H. Fukuda, H. Shinojima, H. Nishi, H. Takesue, T. Tanabe, A. Shinya, E. Kuramochi, M. Notomi, Y. Tokura, S. Itabashi

研究成果: Conference article

抜粋

We demonstrate efficient nonlinear functions using silicon nanophotonic structures. In the ultrasmall core of the waveguides and cavities, nonlinear phenomena are significantly enhanced. Applying the two-photon absorption effect, we have confirmed all optical modulation, in which the modulation speed is improved to around 50 ps by eliminating free carriers. Applying the four-wave-mixing effect, we have achieved high-efficiency wavelength conversion. The conversion efficiency is -11 dB, and the efficiency will be further improved by eliminating free carriers. Using the fourwave-mixing effect, we have also realized a low-noise entangled photon pair source. The source does not need a refrigeration system for noise reduction, which is a great advantage for practical application.

元の言語English
記事番号71341R
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
7134
DOI
出版物ステータスPublished - 2008 12 1
イベントPassive Components and Fiber-based Devices V - Hangzhou, China
継続期間: 2008 10 272008 10 30

    フィンガープリント

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

これを引用

Yamada, K., Tsuchizawa, T., Watanabe, T., Fukuda, H., Shinojima, H., Nishi, H., Takesue, H., Tanabe, T., Shinya, A., Kuramochi, E., Notomi, M., Tokura, Y., & Itabashi, S. (2008). Applications of nonlinear effects in silicon wire waveguides - All optical modulation, wavelength conversion and quantum entanglement. Proceedings of SPIE - The International Society for Optical Engineering, 7134, [71341R]. https://doi.org/10.1117/12.803760