Spontaneous formation of inhomogeneously polarized vortex soliton states in vertical-cavity surface-emitting lasers with feedback

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

The polarization of light has important applications in optical science and engineering. While most of the experiments use light beams with spatial homogeneous polarization, there is been recently an increasing interest in beams with spatially inhomogeneous states of polarization, where special attention was given to those with radial and azimuthal polarization called cylindrical vector (CV) beams [1]. We report on the spontaneous formation of CV beams in a broad-area vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback. Different scenarios are observed in which vortices with homogeneous polarization evolve to unconventional polarization states as the current injection is decreased. We discuss their bistability, and the appearance of a new azimuthally polarized vortex state.
Original languageEnglish
Title of host publicationEuropean Conference on Lasers and Electro-Optics, CLEO 2015
PublisherThe Optical Society
ISBN (Print)9781467374750
Publication statusPublished - 21 Jul 2014
EventEuropean Conference on Lasers and Electro-Optics, CLEO 2015 - Munich, Germany
Duration: 21 Jun 201525 Jun 2015

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferenceEuropean Conference on Lasers and Electro-Optics, CLEO 2015
CountryGermany
CityMunich
Period21/06/1525/06/15

Keywords

  • polarization
  • spatially inhomogeneous states of polarization
  • vortices
  • bistability
  • vertical cavity surface emitting lasers

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