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Título
Ultrafast direct laser writing of cladding waveguides in the 0.8CaSiO3-0.2Ca3(PO4)2 eutectic glass doped with Nd3+ ions
Autor(es)
Materia
Doping
Alloys
Annealing
optical waveguides
Femtosecond lasers
Glass waveguides
Optical properties
Materials heat treatment
Crystallographic defects
Multiphoton lithography
Fecha de publicación
2015-01
Citación
J. Martínez de Mendívil, D. Sola, J. R. Vázquez de Aldana, G. Lifante, A. H. de Aza, P. Pena, and J. I. Peña , "Ultrafast direct laser writing of cladding waveguides in the 0.8CaSiO3-0.2Ca3(PO4)2 eutectic glass doped with Nd3+ ions", Journal of Applied Physics 117, 043104 (2015) https://doi.org/10.1063/1.4906963
Resumen
We report on tubular cladding optical waveguides fabricated in Neodymium doped Wollastonite-Tricalcium Phosphate glass in the eutectic composition. The glass samples were prepared by melting the eutectic powder mixture in a Pt-Rh crucible at 1600 °C and pouring it in a preheated brass mould. Afterwards, the glass was annealed to relieve the inner stresses. Cladding waveguides were fabricated by focusing beneath the sample surface using a pulsed Ti:sapphire laser with a pulsewidth of 120 fs working at 1 kHz. The optical properties of these waveguides have been assessed in terms of near-field intensity distribution and transmitted power, and these results have been compared to previously reported waveguides with double-line configuration. Optical properties have also been studied as function of the temperature. Heat treatments up to 700 °C were carried out to diminish colour centre losses where waveguide's modes and transmitted power were compared in order to establish the annealing temperature at which the optimal optical properties were reached. Laser experiments are in progress to evaluate the ability of the waveguides for 1064 nm laser light generation under 800 nm optical pumping.
URI
ISSN
0021-8979
DOI
10.1063/1.4906963
Colecciones
- ALF. Artículos [297]
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