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Related Experiment Videos

All-fiber LP11 mode convertors.

A Witkowska1, S G Leon-Saval, A Pham

  • 1Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.

Optics Letters
|February 19, 2008
PubMed
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Researchers developed two all-fiber devices to convert light into higher-order modes in optical fibers. These novel photonic crystal fiber and fused coupler devices also generate azimuthally polarized beams for various applications.

Area of Science:

  • Optics and Photonics
  • Fiber Optic Technology

Background:

  • Efficiently converting light between different modes in optical fibers is crucial for advanced photonic applications.
  • Existing methods for mode conversion can be complex or limited in scope.

Purpose of the Study:

  • To introduce two novel all-fiber devices for converting light from the fundamental mode to the second-order set of modes.
  • To demonstrate the capability of these devices in generating azimuthally polarized free-space beams.

Main Methods:

  • Fabrication of a photonic crystal fiber device through controlled hole collapse.
  • Construction of a twisted fused coupler device using few-moded conventional fiber.

Main Results:

  • Successful demonstration of mode conversion from fundamental to second-order modes using both fabricated devices.

Related Experiment Videos

  • Generation of azimuthally polarized free-space beams from the developed all-fiber devices.

    • Conclusions:

    • The developed all-fiber devices offer efficient solutions for higher-order mode generation in optical fibers.
    • These devices have potential applications in fiber optics and free-space beam generation.