Abstract
The interaction of spin and intrinsic orbital angular momentum of light is observed, as evidenced by length-dependent rotations of both spatial patterns and optical polarization in a cylindrically symmetric isotropic optical fiber. Such rotations occur in a straight few-mode fiber when superpositions of two modes with parallel and antiparallel orientation of spin and intrinsic orbital angular momentum () are excited, resulting from a degeneracy splitting of the propagation constants of the modes.
- Received 21 July 2016
DOI:https://doi.org/10.1103/PhysRevLett.118.083601
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