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μ-Raman spectroscopy characterization of LiNbO3 femtosecond laser written waveguides
(American Institute of Physics, 2012-12)
In this paper, we present an iterative method which merges experimental μ-Raman measurements and numerical simulations to describe femtosecond written waveguides in LiNbO3 crystals. This method is based on the deformation ...
Design and implementation of an integrated optical coupler by femtosecond laser written-waveguides in LiNbO3
(Elsevier, 2020-03)
This work presents a particular application corresponding to waveguides manufactured by the femtosecond laser micro-machining technique. More specifically we have conducted the study, design, simulation and implementation ...
Low contrast buried waveguides index profile reconstruction method considering the evanescent field
(IOP Publishing, 2015-08)
In this work we present a new approach related to the profile reconstruction of graded-index waveguides, based on the inversion of the Helmholtz equation for transversal electric propagation modes from measuring the near ...
Estruturas gravadas em cristal de niobato de lítio por exposição a pulsos laser de femtossegundos: produção e caracterização
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2018-09-11)
The present work shows the method used to write structures in lithium niobate crystals doped with erbium and magnesium as well as the characterization of such structures. Structures were produced in a x-cut sample by the ...
Femtosecond-laser direct writing for spatially localized synthesis of PPV
(Journal of Materials Chemistry C, 2018)
Thermally resistant waveguides fabricated in Nd:YAG ceramics by crossing femtosecond damage filaments
(Optical Society of America, 2010-01)
We report on femtosecond laser writing of channel waveguides in Nd3+ ion doped YAG ceramics by multiple inscriptions of damage filaments. Waveguiding between filaments was found to resist annealing temperatures as high as ...
Metallic nanoparticles grown in the core of femtosecond laser micromachined waveguides
(American Institute of Physics (AIP), 2014-05-21)
3D-waveguides containing silver nanoparticles have been fabricated in tungsten lead-pyrophosphate glass by femtosecond laser micromachining. Nucleation and growth of nanoparticles occur in a single step process when high ...