Autor segons l'article: Huu-Dat Nguyen; Rodenas, Airan; Vazquez de Aldana, Javier R.; Martin, Guillermo; Martinez, Javier; Aguilo, Magdalena; Cinta Pujol, Maria; Diaz, Francesc;
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Pujol Baiges, Maria Cinta / RODENAS SEGUI, AIRAN
Paraules clau: Waveguides Nonlinear optical materials Microstructure fabrication Lithium-niobate Crystals Ceramics
Resum: We report mid-infrared LiNbO3 depressed-index microstructured cladding waveguides fabricated by three-dimensional laser writing showing low propagation losses (similar to 1.5 dB/cm) at 3.68 mu m 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. (C) 2016 Optical Society of America
Àrees temàtiques: Química Optics Odontología Medicina iii Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar Engenharias iv Engenharias iii Engenharias ii Ciências biológicas i Ciências agrárias i Ciência da computação Biotecnología Atomic and molecular physics, and optics Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: f.diaz@urv.cat mariacinta.pujol@urv.cat magdalena.aguilo@urv.cat
Identificador de l'autor: 0000-0003-4581-4967 0000-0002-1052-8031 0000-0001-6130-9579
Data d'alta del registre: 2024-04-27
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://opg.optica.org/oe/fulltext.cfm?uri=oe-25-4-3722&id=359987
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Optics Express. 25 (4): 3722-3736
Referència de l'ítem segons les normes APA: Huu-Dat Nguyen; Rodenas, Airan; Vazquez de Aldana, Javier R.; Martin, Guillermo; Martinez, Javier; Aguilo, Magdalena; Cinta Pujol, Maria; Diaz, France (2017). Low-loss 3D-laser-written mid-infrared LiNbO3 depressed-index cladding waveguides for both TE and TM polarizations. Optics Express, 25(4), 3722-3736. DOI: 10.1364/OE.25.003722
DOI de l'article: 10.1364/OE.25.003722
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2017
Tipus de publicació: Journal Publications
Repositori URV