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

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Autori: Fazio, Eugenio; Popescu, Silviu T; Petris, Adrian; Devaux, Fabrice; Ragazzi, Mauro; Chauvet, Mathieu; Vlad, Valentin I

Editorial: Optics Express, 21(22), p.25834, 2013.

Rezumat:

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.

Cuvinte cheie: Integrated optics, Lithium niobate, Nonlinear optics, Nonlinear optics, Nonlinear optics at surfaces, Photorefractive optics, Spatial solitons

URL: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-21-22-25834