Slow light enhanced optical nonlinearity in a silicon photonic crystal coupled-resonator optical waveguide

Nobuyuki Matsuda; Takumi Kato; Ken Ichi Harada; Hiroki Takesue; Eiichi Kuramochi; Hideaki Taniyama; Masaya Notomi

doi:10.1364/OE.19.019861

Slow light enhanced optical nonlinearity in a silicon photonic crystal coupled-resonator optical waveguide

Nobuyuki Matsuda, Takumi Kato, Ken Ichi Harada, Hiroki Takesue, Eiichi Kuramochi, Hideaki Taniyama, Masaya Notomi

Research output: Contribution to journal › Article › peer-review

63 Citations (Scopus)

Abstract

We demonstrate highly enhanced optical nonlinearity in a coupled-resonator optical waveguide (CROW) in a four-wave mixing experiment. Using a CROW consisting of 200 coupled resonators based on width-modulated photonic crystal nanocavities in a line defect, we obtained an effective nonlinear constant exceeding 10,000/W/m, thanks to slow light propagation combined with a strong spatial confinement of light achieved by the wavelength-sized cavities.

Original language	English
Pages (from-to)	19861-19874
Number of pages	14
Journal	Optics Express
Volume	19
Issue number	21
DOIs	https://doi.org/10.1364/OE.19.019861
Publication status	Published - 2011 Oct 10
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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AU - Matsuda, Nobuyuki

AU - Kato, Takumi

AU - Harada, Ken Ichi

AU - Takesue, Hiroki

AU - Kuramochi, Eiichi

AU - Taniyama, Hideaki

AU - Notomi, Masaya

PY - 2011/10/10

Y1 - 2011/10/10

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AB - We demonstrate highly enhanced optical nonlinearity in a coupled-resonator optical waveguide (CROW) in a four-wave mixing experiment. Using a CROW consisting of 200 coupled resonators based on width-modulated photonic crystal nanocavities in a line defect, we obtained an effective nonlinear constant exceeding 10,000/W/m, thanks to slow light propagation combined with a strong spatial confinement of light achieved by the wavelength-sized cavities.

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Slow light enhanced optical nonlinearity in a silicon photonic crystal coupled-resonator optical waveguide

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