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Directional coupling of optical signals by odd dark beams with mixed phase dislocations

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Abstract.

Numerical simulations on the evolution of step-screw and edge-screw optical phase dislocations in bulk saturable self-defocusing nonlinear media are presented, with emphasis on their ability to induce steering waveguides for signal beams (pulses). Two schemes for directional coupling of such signals, both ensuring a reasonable coupling-to-cross-talk efficiency ratio, are investigated. The parameters useful for performance optimization of the couplers are discussed.

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Authors and Affiliations

  1. Sofia University, Dept. of Quantum Electronics, 5. J. Bourchier Blvd, 1164 Sofia, Bulgaria, , , , , , BG

    D. Neshev & A. Dreischuh

  2. Max-Planck-Institut für Quantenoptik, Institut für Laserphysik, Hans-Korfermann-Str. 1, 85748 Garching, Germany, , , , , , DE

    G.G. Paulus & H. Walther

Authors
  1. D. Neshev
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  2. A. Dreischuh
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  3. G.G. Paulus
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  4. H. Walther
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Received: 19 July 2000 / Revised version: 5 February 2001 / Published online: 27 April 2001

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Neshev, D., Dreischuh, A., Paulus, G. et al. Directional coupling of optical signals by odd dark beams with mixed phase dislocations . Appl Phys B 72, 849–854 (2001). https://doi.org/10.1007/s003400100568

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  • DOI: https://doi.org/10.1007/s003400100568

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