Splitting of levels in a cylindrical dielectric waveguide

A splitting of modes in a cylindrical graded-index optical fiber is demonstrated by solving the full Maxwell equations using the perturbation analysis. It is shown that the degeneracy of vortex Laguerre-Gauss modes with distinct orbital angular momentum and polarization (spin) but the same total ang...

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Bibliographic Details
Published in:Optics letters 2013-06, Vol.38 (12), p.2020-2022
Main Author: Petrov, Nikolai I
Format: Article
Language:English
Subjects:
Angular momentum
Dielectric waveguides
Group delay
Mathematical analysis
Optical fibers
Perturbation methods
Rings (mathematics)
Splitting
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Summary:A splitting of modes in a cylindrical graded-index optical fiber is demonstrated by solving the full Maxwell equations using the perturbation analysis. It is shown that the degeneracy of vortex Laguerre-Gauss modes with distinct orbital angular momentum and polarization (spin) but the same total angular momentum is lifted due to the spin-orbit (vector) and tensor forces. Numerical estimations of group delays of modes in optical fiber and frequency splitting in Fabry-Perot and ring resonators are presented.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.38.002020