Use of quasi-local photorefractive response to generated superficial self-written waveguides in lithium niobate

We report the formation of surface self-written waveguides by means of surface pyrolitons in lithium niobate. By a specific orientation of the crystal axis the quasi-local slow photorefractive response of lithium niobate was used to induce a self-confined beam exactly at the crystal-air interface. T...

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Published inOptics express Vol. 21; no. 22; pp. 25834 - 25840
Main Authors Fazio, Eugenio, Popescu, Silviu T, Petris, Adrian, Devaux, Fabrice, Ragazzi, Mauro, Chauvet, Mathieu, Vlad, Valentin I
Format Journal Article
LanguageEnglish
Published United States Optical Society of America - OSA Publishing 04.11.2013
Subjects
Optics
Physics
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Summary:We report the formation of surface self-written waveguides by means of surface pyrolitons in lithium niobate. By a specific orientation of the crystal axis the quasi-local slow photorefractive response of lithium niobate was used to induce a self-confined beam exactly at the crystal-air interface. The mode profile of the photo-induced waveguide is strongly asymmetric due to the interface presence.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.21.025834