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American Institute of Physics, Applied Physics Letters, 9(96), p. 091107

DOI: 10.1063/1.3313950

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Luminescence-induced photorefractive spatial solitons

Journal article published in 2010 by Eugenio Fazio, Massimo Alonzo, F. Devaux, A. Toncelli, N. Argiolas ORCID, M. Bazzan, C. Sada ORCID, M. Chauvet
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This paper is available in a repository.

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Abstract

We report the observation of spatial confinement of a pump beam into a photorefractive solitonic channel induced by luminescence [luminescence induced spatial soliton (LISS)]. Trapped beams have been obtained in erbium doped lithium niobate crystals at concentrations as high as 0.7 mol % of erbium. By pumping at 980 nm, erbium ions emit photons at 550 nm by two-step absorption, wavelength which can be absorbed by lithium niobate and originates the photorefractive effect. The luminescence at 550 nm generates at the same time the solitonic channel and the background illumination reaching a steady-state soliton regime.