Vectorial topological dipole in output radiation of a fiber optical coupler

Authors: Fadeeva, T.; Volyar, A.1

Source: Technical Physics Letters, Volume 30, Number 7, July 2004 , pp. 553-556(4)

Publisher: MAIK Nauka/Interperiodica

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Abstract:

It is experimentally and theoretically demonstrated that a vectorial topological dipole is formed in the radiation field of the main channel of a fiber optical coupler. The dipole consists of two polarization umbilics—of the star and lemon or the star and monstar types—and retains its structure in the course of radiation propagating along the fiber, whereby the topological index remains unchanged. Using a polarization filter, it is possible to select two identically charged vortices corresponding to these polarized umbilics.

Document Type: Research article

DOI: 10.1134/1.1783399

Affiliations: 1: Email: volyar@ccssu.crimea.ua

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