Nonlinearity and Disorder in Fiber Arrays

Thomas Pertsch, Ulf Peschel, Jens Kobelke, Kay Schuster, Hartmut Bartelt, Stefan Nolte, Andreas Tünnermann, and Falk Lederer
Phys. Rev. Lett. 93, 053901 – Published 27 July 2004

Abstract

We experimentally investigate light propagation in a disordered two-dimensional array of mutually coupled optical fibers. In the linear case light either spreads in a diffusive manner or localizes at a few sites. For high excitation power diffusive spreading is arrested by the focusing nonlinearity, i.e., forming a discrete soliton. By contrast, fields, which are localized in the linear regime, can experience both spreading and contraction caused by the nonlinearity.

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  • Received 23 December 2003

DOI:https://doi.org/10.1103/PhysRevLett.93.053901

©2004 American Physical Society

Authors & Affiliations

Thomas Pertsch and Ulf Peschel

  • Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany

Jens Kobelke, Kay Schuster, and Hartmut Bartelt

  • Institut für Physikalische Hochtechnologie e.V., Winzerlaer Straße 10, 07745 Jena, Germany

Stefan Nolte, Andreas Tünnermann, and Falk Lederer

  • Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany

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Issue

Vol. 93, Iss. 5 — 30 July 2004

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