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Free-carrier-induced soliton fission unveiled by in situ measurements in nanophotonic waveguides.
Husko, Chad; Wulf, Matthias; Lefrancois, Simon; Combrié, Sylvain; Lehoucq, Gaëlle; De Rossi, Alfredo; Eggleton, Benjamin J; Kuipers, L.
Afiliação
  • Husko C; Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia.
  • Wulf M; Center for Nanophotonics, FOM Institute AMOLF, Science Park 104, 1098 XG, Amsterdam, The Netherlands.
  • Lefrancois S; Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia.
  • Combrié S; Thales Research and Technology, 1 Avenue. A. Fresnel, 91767 Palaiseau, France.
  • Lehoucq G; Thales Research and Technology, 1 Avenue. A. Fresnel, 91767 Palaiseau, France.
  • De Rossi A; Thales Research and Technology, 1 Avenue. A. Fresnel, 91767 Palaiseau, France.
  • Eggleton BJ; Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia.
  • Kuipers L; Center for Nanophotonics, FOM Institute AMOLF, Science Park 104, 1098 XG, Amsterdam, The Netherlands.
Nat Commun ; 7: 11332, 2016 Apr 15.
Article em En | MEDLINE | ID: mdl-27079683
Solitons are localized waves formed by a balance of focusing and defocusing effects. These nonlinear waves exist in diverse forms of matter yet exhibit similar properties including stability, periodic recurrence and particle-like trajectories. One important property is soliton fission, a process by which an energetic higher-order soliton breaks apart due to dispersive or nonlinear perturbations. Here we demonstrate through both experiment and theory that nonlinear photocarrier generation can induce soliton fission. Using near-field measurements, we directly observe the nonlinear spatial and temporal evolution of optical pulses in situ in a nanophotonic semiconductor waveguide. We develop an analytic formalism describing the free-carrier dispersion (FCD) perturbation and show the experiment exceeds the minimum threshold by an order of magnitude. We confirm these observations with a numerical nonlinear Schrödinger equation model. These results provide a fundamental explanation and physical scaling of optical pulse evolution in free-carrier media and could enable improved supercontinuum sources in gas based and integrated semiconductor waveguides.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Austrália País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Austrália País de publicação: Reino Unido