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Disorder-induced single-mode transmission

Author

Listed:
  • Giancarlo Ruocco

    (Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia
    University Sapienza)

  • Behnam Abaie

    (Center for High Technology Materials, University of New Mexico)

  • Walter Schirmacher

    (Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia
    University Sapienza
    Institut für Physik, Universität Mainz)

  • Arash Mafi

    (Center for High Technology Materials, University of New Mexico)

  • Marco Leonetti

    (Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia
    CNR NANOTEC-Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni)

Abstract

Localized states trap waves propagating in a disordered potential and play a crucial role in Anderson localization, which is the absence of diffusion due to disorder. Some localized states are barely coupled with neighbours because of differences in wavelength or small spatial overlap, thus preventing energy leakage to the surroundings. This is the same degree of isolation found in the homogeneous core of a single-mode optical fibre. Here we show that localized states of a disordered optical fibre are single mode: the transmission channels possess a high degree of resilience to perturbation and invariance with respect to the launch conditions. Our experimental approach allows identification and characterization of the single-mode transmission channels in a disordered matrix, demonstrating low losses and densely packed single modes. These disordered and wavelength-sensitive channels may be exploited to de-multiplex different colours at different locations.

Suggested Citation

  • Giancarlo Ruocco & Behnam Abaie & Walter Schirmacher & Arash Mafi & Marco Leonetti, 2017. "Disorder-induced single-mode transmission," Nature Communications, Nature, vol. 8(1), pages 1-6, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14571
    DOI: 10.1038/ncomms14571
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