Cascaded Phase Matching and Nonlinear Symmetry Breaking in Fiber Frequency Combs

M. Erkintalo, Y. Q. Xu, S. G. Murdoch, J. M. Dudley, and G. Genty
Phys. Rev. Lett. 109, 223904 – Published 27 November 2012

Abstract

We report theoretical, numerical, and experimental studies of cascaded phase matching in fiber frequency combs and show how this mechanism is directly connected to the dynamics of supercontinuum generation. In particular, linking cascaded four-wave mixing with direct higher-order nonlinear processes allows us to derive a simple phase matching condition that governs nonlinear symmetry breaking in the presence of higher-order dispersion. We discuss how this mechanism provides a physical interpretation of soliton-induced Cherenkov radiation and associated spectral recoil in terms of phase-matched frequency mixing pumped by bichromatic pump pairs in the soliton spectrum. Theoretical and numerical predictions are confirmed via experiments using both quasicontinuous wave and picosecond pulse excitation.

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  • Received 11 June 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.223904

© 2012 American Physical Society

Authors & Affiliations

M. Erkintalo1, Y. Q. Xu1, S. G. Murdoch1, J. M. Dudley2, and G. Genty3

  • 1Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand
  • 2Institut FEMTO-ST, CNRS UMR 6174, Université de Franche-Comté, 25030 Besançon, France
  • 3Optics Laboratory, Tampere University of Technology, FI-33101 Tampere, Finland

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Issue

Vol. 109, Iss. 22 — 30 November 2012

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