TY - GEN
T1 - All optical wavelength conversion and nonlinear functions enhanced in ultra-small silicon waveguides
AU - Yamada, K.
AU - Fukuda, H.
AU - Watanabe, T.
AU - Tsuchizawa, T.
AU - Shinojima, H.
AU - Tanabe, T.
AU - Itabashi, S.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - 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.
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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U2 - 10.1364/nlo.2007.tud1
DO - 10.1364/nlo.2007.tud1
M3 - Conference contribution
AN - SCOPUS:85088756425
SN - 1557528438
SN - 9781557528438
T3 - Optics InfoBase Conference Papers
BT - Nonlinear Optics
PB - Optical Society of America (OSA)
T2 - Nonlinear Optics: Materials, Fundamentals and Applications, NLO 2007
Y2 - 30 July 2007 through 30 July 2007
ER -