Asymmetric spectrum evolution of high power short pulses in AlGaAs waveguides
Anno: 2005
Autori: Modotto D., Mondia J.P., Linden S., Tan H.W., Morandotti R., Kleckner T. C., Locatelli A., De Angelis C., van Driel H. M., Stanley C. R., Aitchison J.S.
Affiliazione autori: Dipartimento di Elettronica per lAutomazione, Universita` di Brescia, via Branze, 38, 25123 Brescia, Italy; Department of Physics, University of Toronto, Toronto, Canada M5R 2Z2; Institut National de la Recherche Scientifique, Universite´ du Quebec, Varennes, Canada J3X 1S2; Department of Electronics and Electrical Engineering, University of Glasgow, Glasgow G12 8LT, UK; Department of Electrical and Computer Engineering, University of Toronto, Toronto, Canada M5S 3G4
Abstract: We measured the self-phase modulation spectra at the output of deep-etched AlGaAs waveguides. The light source was an OPO laser system providing 250 fs long pulses, at wavelengths around 1520 nm, with a peak power as high as 1 kW. FROG measurements of the OPO pulses reveal their asymmetric shape. The multi-peak spectra, observed at the waveguide output, show a dramatic asymmetry and a power shift towards short wavelengths. The interplay between the Kerr non-linearity, dispersion and self-steepening amplifies the initial slight asymmetry of the injected spectrum. Experimental results compare favourably with the numerical solution of the generalized non-linear Schrodinger equation. (c) 2005 Elsevier B.V. All rights reserved.
Giornale/Rivista: OPTICS COMMUNICATIONS (PRINT)
Volume: 249 (1-3) Da Pagina: 201 A: 208
Parole chiavi: Nonlinear OpticsDOI: 10.1016/j.optcom.2005.01.023Citazioni: 9dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-21Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui