Autor segons l'article: Aguiló, M. ; Nguyen, H. D. ; Rodenas, A. ; Vázquez de Aldana, J. R. ; Martín, G. ; Martínez, J. ; Pujol, M. C.; Díaz, F.
Departament: Química Física i Inorgànica
Autor/s de la URV: AGUILÓ DÍAZ, MAGDALENA; Nguyen, H. D. ; Rodenas, A. ; Vázquez de Aldana, J. R. ; Martín, G. ; Martínez, J. ; PUJOL BAIGES, MARIA CINTA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL
Paraules clau: Microstructure fabrication nonlinear optical materials Waveguides
Resum: We report mid-infrared LiNbO3 depressed-index microstructured cladding waveguides fabricated by three-dimensional laser writing showing low propagation losses (~1.5 dB/cm) at 3.68 μm wavelength for both the transverse electric and magnetic polarized modes, a feature previously unachieved due to the strong anisotropic properties of this type of laser microstructured waveguides and which is of fundamental importance for many photonic applications. Using a heuristic modeling-testing iteration design approach which takes into account cladding induced stress-optic index changes, the fabricated cladding microstructure
provides low-loss single mode operation for the mid-IR for both orthogonal polarizations.
The dependence of the localized refractive index changes within the cladding microstructure with post-fabrication thermal annealing processes was also investigated, revealing its complex dependence of the laser induced refractive index changes on laser fabrication conditions and thermal post-processing steps. The waveguide modes properties and their dependence on thermal post-processing were numerically modeled and fitted to the
experimental values by systematically varying three fundamental parameters of this type of waveguides: depressed refractive index values at sub-micron laser-written tracks, track size changes, and piezo-optic induced refractive index changes
Grup de recerca: Física i Cristal.lografia de Materials Física i Cristal·lografia de Nanomaterials
Àrees temàtiques: Química Química Chemistry
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1094-4087
Identificador de l'autor: 0000-0001-6130-9579; ; ; ; ; ; 0000-0002-1052-8031; 0000-0003-4581-4967
Data d'alta del registre: 2018-05-30
Pàgina final: 3736
Volum de revista: 25
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-4-3722&origin=search
Programa de finançament: plan; Retos; MAT2016-75716-C2-1-R plan; Retos; TEC2014-55948-R plan; FIS2013-44174-P altres; Grupos consolidados; 2014SGR1358 altres; Junta de Castilla y León; UIC016 altres; Juanta de Castilla y León; SA046U16 european; JEDI ACE; ACP2-GA-2013-314335-JEDI ACE altres; Icrea Academia; 2010-ICREA-0
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1364/OE.25.003722
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2017
Pàgina inicial: 3722
Tipus de publicació: Article Artículo Article