Interaction of the topological phase and the Magnus effect in a multimode fiber

A. Aleksiev; E. Modnikova; Tatyana A. Fadeyeva; S. N. Lapayeva; Alexander V. Volyar

doi:10.1117/12.239209

29 April 1996 Interaction of the topological phase and the Magnus effect in a multimode fiber

A. Aleksiev, E. Modnikova, Tatyana A. Fadeyeva, S. N. Lapayeva, Alexander V. Volyar

Proceedings Volume 2795, Nonlinear Optics of Liquid and Photorefractive Crystals; (1996) https://doi.org/10.1117/12.239209
Event: Nonlinear Optics of Liquid and Photorefractive Crystals, 1995, Ai-Danil, Crimea, Ukraine

Abstract

The phenomenon of a light topological birefringence in a multimode fiber has been discussed in papers. The physical mechanism of the topological birefringence, as expected earlier is determined by the interaction of the two effects, namely, the topological Berry's phase and the optical Magnus effect. So, for a square distribution of a refractive index in a fiber cross section the near-meridianal local waves propagate along ray trajectories represented by strongly stretched ellipses of an elliptical helix. A plane made by a fiber axis and a major axis of a ray elliptical helix undergoes a rotation into the fiber, and the rotation hand of this plane is defined by a sign of the wave polarization circularity. If a linear polarized light drops into a fiber input its left-hand polarized component will rotate the major axis of the elliptical helix counterclockwise, and the right-hand polarized component rotates clockwise. Since the angular rates of this rotation are slightly different one from another forthcoming the local waves having counter circulation of a polarization should be collapsed in a single linear polarized local wave. However if the local wave trajectory doesn't lie in a plane then it is a space curve.

Citation Download Citation

A. Aleksiev, E. Modnikova, Tatyana A. Fadeyeva, S. N. Lapayeva, and Alexander V. Volyar "Interaction of the topological phase and the Magnus effect in a multimode fiber", Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); https://doi.org/10.1117/12.239209

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KEYWORDS

Birefringence

Multimode fibers

Polarization

Optical vortices

Optical fibers

Refractive index

Phase velocity

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