Characterization and inhibition of photorefractive optical damage of swift heavy ion irradiation waveguides in LiNbO 3
| Autor: | Mercedes Carrascosa, M. Jubera, José Olivares, Angel García-Cabañes, Fabian Lüedtke |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
business.industry Lithium niobate Physics::Optics Statistical and Nonlinear Physics Photorefractive effect Atomic and Molecular Physics and Optics Ion chemistry.chemical_compound Light intensity Optics Swift heavy ion chemistry Optoelectronics Light beam Irradiation business Nonlinear Sciences::Pattern Formation and Solitons Refractive index |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | The photorefractive effect and the corresponding optical damage thresholds of novel LiNbO 3 waveguides fabricated by swift ion irradiation have been investigated. TE- and TM-mode operation have been characterized, and the influence of the beam propagation length analyzed. Optical damage levels similar to those of proton-exchanged waveguides have been found. In order to reduce optical damage, the influence of temperature has been investigated. An increase of more than a factor of 100 in the optical damage threshold has been obtained by moderate heating up to 90°C. The results are briefly discussed under the two-center model for the photorefractive effect in undoped LiNbO 3, and compared with data from other types of LiNbO 3 waveguides. © 2012 Optical Society of America. This work was supported by the Ministerio de Economia y Competitividad (MINECO) under grants MAT2008-06794- C03-01 and MAT2011-28379-C03-01. |
| Databáze: | OpenAIRE |
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