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Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
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Interaction-induced localization of anomalously diffracting nonlinear waves.

Y Linzon1, Y Sivan, B Malomed

  • 1School of Physics and Astronomy, Faculty of Exact Sciences, Tel-Aviv University, Tel Aviv 69978, Israel.

Physical Review Letters
|December 13, 2006
PubMed
Summary

Normal solitons in glass waveguide arrays can be steered by tilted beams. This interaction, dependent on phase difference, allows routing solitons to different sites within the array.

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Area of Science:

  • Nonlinear optics
  • Waveguide optics
  • Photonics

Background:

  • Solitons are self-reinforcing wave packets that maintain their shape while propagating.
  • Waveguide arrays provide a platform for studying light propagation in engineered optical media.
  • Interactions between solitons and external beams can lead to complex dynamics and control possibilities.

Purpose of the Study:

  • To experimentally investigate the interaction between normal solitons and tilted beams in glass waveguide arrays.
  • To understand the conditions under which a tilted beam can influence soliton propagation.
  • To identify methods for controlling soliton routing within waveguide arrays.

Main Methods:

  • Experimental setup involving glass waveguide arrays and laser-generated solitons.
  • Introduction of tilted beams with controlled phase differences.
  • Observation and analysis of soliton trajectories and interactions.
  • Numerical simulations to identify parameter regimes for observed phenomena.

Main Results:

  • A tilted beam can refocus and route a normally propagating soliton.
  • The routing outcome is dependent on the initial phase difference between the soliton and the tilted beam.
  • Specific parameter regimes were identified both experimentally and numerically where this controlled routing occurs.
  • The interaction is most effective in the self-defocusing regime of the waveguide array.

Conclusions:

  • Tilted beams offer a viable method for controlling and routing solitons in waveguide arrays.
  • The phase difference is a critical parameter for achieving directed soliton transport.
  • This study demonstrates a novel approach for optical beam steering and manipulation using nonlinear interactions.