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Highly nonlinear AlGaAs waveguides for broadband signal generation

Highly nonlinear AlGaAs waveguides for broadband signal generation
Highly nonlinear AlGaAs waveguides for broadband signal generation
In the last decade silicon on insulator-based waveguides have progressively attracted the attention of the nonlinear-optics research community. Due to the strong refractive index contrast of such waveguides and thanks to the very high nonlinear refractive index of silicon, strong nonlinear effects can be achieved in SOI structures, even at moderate pump power level (e.g. P < 1 mW) [1]. However, silicon also exhibits a very strong nonlinear absorption coefficient that severely limits the waveguide performance at power level above 1 mW. Very recently nonlinear AlGaAs waveguides were demonstrated, showing both efficient continuous wave and pulsed nonlinearities [2] with no two-photon absorption (TPA) effect, even at high power level.
Optical Society of America
Lacava, Cosimo
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Strain, M.J.
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Pusino, V.
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Marchetti, R.
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Minzioni, P.
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Sorel, M.
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Cristiani, I.
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Lacava, Cosimo
a0a31a27-23ac-4a73-8bb4-2f02368fb8bd
Strain, M.J.
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Pusino, V.
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Marchetti, R.
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Minzioni, P.
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Sorel, M.
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Cristiani, I.
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Lacava, Cosimo, Strain, M.J., Pusino, V., Marchetti, R., Minzioni, P., Sorel, M. and Cristiani, I. (2015) Highly nonlinear AlGaAs waveguides for broadband signal generation. In Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015. Optical Society of America..

Record type: Conference or Workshop Item (Paper)

Abstract

In the last decade silicon on insulator-based waveguides have progressively attracted the attention of the nonlinear-optics research community. Due to the strong refractive index contrast of such waveguides and thanks to the very high nonlinear refractive index of silicon, strong nonlinear effects can be achieved in SOI structures, even at moderate pump power level (e.g. P < 1 mW) [1]. However, silicon also exhibits a very strong nonlinear absorption coefficient that severely limits the waveguide performance at power level above 1 mW. Very recently nonlinear AlGaAs waveguides were demonstrated, showing both efficient continuous wave and pulsed nonlinearities [2] with no two-photon absorption (TPA) effect, even at high power level.

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Accepted/In Press date: 23 March 2015
Published date: June 2015
Venue - Dates: 2015 European Conference on Lasers and Electro-Optics: CLEO®/Europe-EQEC 2015, Munich, Germany, 2015-06-21 - 2015-06-25
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 378244
URI: https://eprints.soton.ac.uk/id/eprint/378244
PURE UUID: 29c951d0-4774-441d-aab2-d497b2c7cfde
ORCID for Cosimo Lacava: ORCID iD orcid.org/0000-0002-9950-8642

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Date deposited: 13 Jul 2015 10:29
Last modified: 29 Oct 2019 01:36

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