Title
Polarization transport in optical fibers beyond Rytov's law
Abstract
We consider the propagation of light in arbitrarily curved step-index optical fibers. Using a multiple-scales approximation scheme, set up in Fermi normal coordinates, the full vectorial Maxwell equations are solved in a perturbative manner. At leading order, this provides a rigorous derivation of Rytov's law. At next order, we obtain nontrivial dynamics of the electromagnetic field, characterized by two coupling constants, the phase and the polarization curvature moments, which describe the curvature response of the light's phase and its polarization vector, respectively. The latter can be viewed as an inverse spin Hall effect of light, where the direction of propagation is constrained along the optical fiber and the polarization evolves in a frequency-dependent way.
Keywords
Atomic, Molecular & Optical
Object type
Language
English [eng]
Persistent identifier
phaidra.univie.ac.at/o:1955511
Appeared in
Title
Physical Review Research
Volume
5
Issue
2
ISSN
2643-1564
Issued
2023
Publication
American Physical Society (APS)
Version type
Date issued
2023
Access rights
Rights
University of Vienna | Universitätsring 1 | 1010 Vienna | T
+43-1-4277-0