title: Cross-polarized photon-pair generation and bi-chromatically pumped optical parametric oscillation on a chip.
abstract: Nonlinear optical processes are one of the most important tools in modern optics with a broad spectrum of applications in, for example, frequency conversion, spectroscopy, signal processing and quantum optics. For practical and ultimately widespread implementation, on-chip devices compatible with electronic integrated circuit technology offer great advantages in terms of low cost, small footprint, high performance and low energy consumption. While many on-chip key components have been realized, to date polarization has not been fully exploited as a degree of freedom for integrated nonlinear devices. In particular, frequency conversion based on orthogonally polarized beams has not yet been demonstrated on chip. Here we show frequency mixing between orthogonal polarization modes in a compact integrated microring resonator and demonstrate a bi-chromatically pumped optical parametric oscillator. Operating the device above and below threshold, we directly generate orthogonally polarized beams, as well as photon pairs, respectively, that can find applications, for example, in optical communication and quantum optics.
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.
authors.forename: Christian
authors.initials: C
authors.lastname: Reimer
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.
authors.forename: Michael
authors.initials: M
authors.lastname: Kues
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.|Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
authors.forename: Lucia
authors.initials: L
authors.lastname: Caspani
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.|Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9RH, UK.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Wetzel
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.
authors.forename: Piotr
authors.initials: P
authors.lastname: Roztocki
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.|Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
authors.forename: Matteo
authors.identifier: http://orcid.org/0000-0002-9100-8539
authors.initials: M
authors.lastname: Clerici
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.
authors.forename: Yoann
authors.initials: Y
authors.lastname: Jestin
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.|Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
authors.forename: Marcello
authors.initials: M
authors.lastname: Ferrera
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.|Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9RH, UK.
authors.forename: Marco
authors.identifier: http://orcid.org/0000-0001-8894-496X
authors.initials: M
authors.lastname: Peccianti
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.|Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9RH, UK.
authors.forename: Alessia
authors.initials: A
authors.lastname: Pasquazi
authors.affiliation: Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, China.
authors.forename: Brent E
authors.initials: BE
authors.lastname: Little
authors.affiliation: Department of Physics and Material Science, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China.
authors.forename: Sai T
authors.initials: ST
authors.lastname: Chu
authors.affiliation: School of Electrical and Computer Engineering, RMIT University, Melbourne, Victoria 3001, Australia.
authors.forename: David J
authors.initials: DJ
authors.lastname: Moss
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2.|Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti