Original Article

Citation: Light: Science & Applications (2015) 4, e314; doi:10.1038/lsa.2015.87
Published online 14 August 2015

Stable optical vortices in nonlinear multicore fibers
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Ljupčo Hadžievski1, Aleksandra Maluckov1, Alexander M. Rubenchik2 and Sergei Turitsyn3,4

  1. 1Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
  2. 2Lawrence Livermore National Laboratory, Livermore, California 94550, USA
  3. 3Aston Institute of Photonic Technologies, Aston University, B4 7ET Birmingham, UK
  4. 4Laboratory of Nonlinear Photonics, Novosibirsk State University, Novosibirsk, 630090, Russia

Correspondence: Sergei Turitsyn, (s.k.turitsyn@aston.ac.uk)

Received 27 November 2014; Revised 6 April 2015; Accepted 7 April 2015

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Abstract

The multicore fiber (MCF) is a physical system of high practical importance. In addition to standard exploitation, MCFs may support discrete vortices that carry orbital angular momentum suitable for spatial-division multiplexing in high-capacity fiber-optic communication systems. These discrete vortices may also be attractive for high-power laser applications. We present the conditions of existence, stability, and coherent propagation of such optical vortices for two practical MCF designs. Through optimization, we found stable discrete vortices that were capable of transferring high coherent power through the MCF.

Keywords:

coherent energy propagation; multicore fibers; nonlinear vortices