title: Second harmonic generation in AlGaAs photonic wires using low power continuous wave light.
abstract: We report modal phase matched (MPM) second harmonic generation (SHG) in high-index contrast AlGaAs sub-micron ridge waveguides, by way of sub-mW continuous wave powers at telecommunication wavelengths. We achieve an experimental normalized conversion efficiency of ~14%/W/cm2, obtained through a careful sub-wavelength design supporting both the phase matching requirement and a significant overlap efficiency. Furthermore, the weak anomalous dispersion, robust fabrication technology and possible geometrical and thermal tuning of the device functionality enable a fully integrated multi-functional chip for several critical areas in telecommunications, including wavelength (time) division multiplexing and quantum entanglement.
authors.affiliation: INRS-EMT, 1650 Boulevard Lionel Boulet, Varennes, Québec, J3X 1S2, Canada. david.duchesne@emt.inrs.ca
authors.forename: D
authors.initials: D
authors.lastname: Duchesne
authors.forename: K A
authors.initials: KA
authors.lastname: Rutkowska
authors.forename: M
authors.initials: M
authors.lastname: Volatier
authors.forename: F
authors.initials: F
authors.lastname: Légaré
authors.forename: S
authors.initials: S
authors.lastname: Delprat
authors.forename: M
authors.initials: M
authors.lastname: Chaker
authors.forename: D
authors.initials: D
authors.lastname: Modotto
authors.forename: A
authors.initials: A
authors.lastname: Locatelli
authors.forename: C
authors.initials: C
authors.lastname: De Angelis
authors.forename: M
authors.initials: M
authors.lastname: Sorel
authors.forename: D N
authors.initials: DN
authors.lastname: Christodoulides
authors.forename: G
authors.initials: G
authors.lastname: Salamo
authors.forename: R
authors.initials: R
authors.lastname: Arès
authors.forename: V
authors.initials: V
authors.lastname: Aimez
authors.forename: R
authors.initials: R
authors.lastname: Morandotti
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D001152:Arsenicals / Q000737:chemistry*; D005708:Gallium / Q000737:chemistry*; D054025:Lasers, Dye; D008027:Light; D008420:Manufactured Materials; D008962:Models, Theoretical; D055096:Optical Devices; D055095:Optics and Photonics / Q000295:instrumentation* / Q000379:methods; D012666:Semiconductors
chemical_list: D017607:Aluminum Compounds; D001152:Arsenicals; D005708:Gallium