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

K. Yamada, H. Fukuda, T. Watanabe, T. Tsuchizawa, H. Shinojima, Takasumi 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 publicationOptics InfoBase Conference Papers
PublisherOptical Society of America
ISBN (Print)1557528438, 9781557528438
Publication statusPublished - 2007
Externally publishedYes
EventNonlinear Optics: Materials, Fundamentals and Applications, NLO 2007 - Kona, HI, United States
Duration: 2007 Jul 302007 Jul 30

Other

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

Fingerprint

Optical frequency conversion
Waveguides
Modulation
Pumps
waveguides
Silicon
Crystal defects
Four wave mixing
silicon
wavelengths
Photonics
pumps
Conversion efficiency
modulation
Photons
internal conversion
Wire
four-wave mixing
wire
photonics

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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 Optics InfoBase Conference Papers Optical Society of America.

All optical wavelength conversion and nonlinear functions enhanced in ultra-small silicon waveguides. / Yamada, K.; Fukuda, H.; Watanabe, T.; Tsuchizawa, T.; Shinojima, H.; Tanabe, Takasumi; Itabashi, S.

Optics InfoBase Conference Papers. Optical Society of America, 2007.

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

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 Optics InfoBase Conference Papers. Optical Society of America, Nonlinear Optics: Materials, Fundamentals and Applications, NLO 2007, Kona, HI, United States, 07/7/30.
Yamada K, Fukuda H, Watanabe T, Tsuchizawa T, Shinojima H, Tanabe T et al. All optical wavelength conversion and nonlinear functions enhanced in ultra-small silicon waveguides. In Optics InfoBase Conference Papers. Optical Society of America. 2007
Yamada, K. ; Fukuda, H. ; Watanabe, T. ; Tsuchizawa, T. ; Shinojima, H. ; Tanabe, Takasumi ; Itabashi, S. / All optical wavelength conversion and nonlinear functions enhanced in ultra-small silicon waveguides. Optics InfoBase Conference Papers. Optical Society of America, 2007.
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AB - 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.

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