All optical wavelength conversion and nonlinear functions enhanced in ultra-small silicon waveguides

K. Yamada, H. Fukuda, T. Watanabe, T. Tsuchizawa, H. Shinojima, T. Tanabe, S. Itabashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We demonstrate two types of nonlinear optical functions enhanced in silicon photonic wire waveguides. One is a wavelength conversion based on a four-wave mixing effect. Internal conversion efficiency was around-10 dB when a CW-operated 160-mW pump was applied. Another is a cross absorption modulation based on a non-degenerated two-photon absorption. Modulation depth was about 50% when a pump power was 300 mW. Efficiencies of these functions can be improved by suppressing free-carrier absorption effect. For this purpose, we have tried two practical methods: carrier extraction using PIN structures and recombination enhancement using lattice defects.

Original languageEnglish
Title of host publicationNonlinear Optics
Subtitle of host publicationMaterials, Fundamentals and Applications, NLO 2007
PublisherOptical Society of America
ISBN (Print)1557528438, 9781557528438
Publication statusPublished - 2007 Jan 1
Externally publishedYes
EventNonlinear Optics: Materials, Fundamentals and Applications, NLO 2007 - Kona, HI, United States
Duration: 2007 Jul 302007 Jul 30

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Other

OtherNonlinear Optics: Materials, Fundamentals and Applications, NLO 2007
CountryUnited States
CityKona, HI
Period07/7/3007/7/30

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Yamada, K., Fukuda, H., Watanabe, T., Tsuchizawa, T., Shinojima, H., Tanabe, T., & Itabashi, S. (2007). All optical wavelength conversion and nonlinear functions enhanced in ultra-small silicon waveguides. In Nonlinear Optics: Materials, Fundamentals and Applications, NLO 2007 (Optics InfoBase Conference Papers). Optical Society of America.