title: Improved intrapulse raman scattering control via asymmetric airy pulses.
abstract: We experimentally demonstrate the possibility of tuning the frequency of a laser pulse via the use of an Airy pulse-seeded soliton self-frequency shift. The intrinsically asymmetric nature of Airy pulses, typically featured by either leading or trailing oscillatory tails (relatively to the main lobe), is revealed through the nonlinear generation of both a primary and a secondary Raman soliton self-frequency shift, a phenomenon which is driven by the soliton fission processes. The resulting frequency shift can be carefully controlled by using time-reversed Airy pulses or, alternatively, by applying an offset to the cubic phase modulation used to generate the pulses. When compared with the use of conventional chirped Gaussian pulses, our technique brings about unique advantages in terms of both efficient frequency tuning and feasibility, along with the generation and control of multicolor Raman solitons with enhanced tunability. Our theoretical analysis agrees well with our experimental observations.
authors.affiliation: The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China.|INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hu
authors.affiliation: INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada.
authors.forename: Amirhossein
authors.initials: A
authors.lastname: Tehranchi
authors.affiliation: Dipartimento di Ingegneria dell'Informazione, Università di Brescia, Via Branze 38, 25123 Brescia, Italy.
authors.forename: Stefan
authors.initials: S
authors.lastname: Wabnitz
authors.affiliation: Advanced Photonics Concepts Laboratory, Department of Electrical Engineering and Department of Engineering Physics, Ecole Polytechnique, University of Montreal, C.P. 6079, Succursale Centre-ville, Montreal, Québec H3C 3A7, Canada.
authors.forename: Raman
authors.initials: R
authors.lastname: Kashyap
authors.affiliation: The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China.|Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USA.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Chen
authors.affiliation: INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada.
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti