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Higher-order mode investigations by intermodal interference in a dual-core photonic crystal fiber

  • Nonlinear and Quantum Optics
  • Published:
Laser Physics

Abstract

This article presents an investigation of the linear optical properties of a dual-core photonic crystal fiber with a square lattice made of a multicomponent glass in a second communication window. An experimental method based on intermodal interference was used to determine the effective refractive indices of higher-order modes, with knowledge of the fundamental mode dispersion. The effective refractive indices were also determined by an FDTD-based simulation and the obtained values provided a good agreement in comparison to the experimental results. The obtained results help to clarify the nonlinear spectral transformation processes observed in the same fiber at propagation in the higher-order modes.

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Authors and Affiliations

  1. Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska Dolina, Bratislava, 842 48, Slovakia

    M. Koys

  2. International Laser Center, Ilkovicova 3, Bratislava, 812 19, Slovakia

    M. Koys, I. Bugar, D. Lorenc & F. Uherek

  3. Faculty of Physics, Warsaw University, Pasteura 7, Warsaw, 02 093, Poland

    R. Buczynski

  4. Institute of Electronic Materials Technology, Wolczynska 133, Warsaw, 01 919, Poland

    D. Pysz

Authors
  1. M. Koys
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  2. I. Bugar
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  3. D. Lorenc
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  4. R. Buczynski
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  5. D. Pysz
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  6. F. Uherek
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Correspondence to M. Koys.

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Original Text © Astro, Ltd., 2008.

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Koys, M., Bugar, I., Lorenc, D. et al. Higher-order mode investigations by intermodal interference in a dual-core photonic crystal fiber. Laser Phys. 18, 1153–1158 (2008). https://doi.org/10.1134/S1054660X08100083

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  • DOI: https://doi.org/10.1134/S1054660X08100083

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