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Titel
Femtosecond laser inscribed cladding waveguides in Nd:YAG ceramics: Fabrication, fluorescence imaging and laser performance
Autor(es)
Schlagwort
Waveguides
Ablation
Femtosecond lasers
Microfabrication
Integrated optics
Clasificación UNESCO
2209.10 Láseres
2209.13 Óptica no lineal
Fecha de publicación
2012-08-13
Verlag
Optical Society of America
Citación
Optics Express 20 (17), 18620-18629
Resumen
We report on the fabrication of depressed cladding waveguide
lasers in Nd:YAG (neodymium doped yttrium aluminum garnet,
Nd:Y3Al5O12) ceramics microstructured by femtosecond laser pulses. Full
control over the confined light spatial distribution is demonstrated by the
fabrication of high contrast waveguides with hexagonal, circular and
trapezoidal configurations. The confocal fluorescence measurements of the
waveguides reveal that the original luminescence features of Nd3+ ions are
well-preserved in the waveguide regions. Under optical pump at 808 nm,
cladding waveguides showed continuous wave efficient laser oscillation.
The maximum output power obtained at 1064.5 nm is ~181 mW with a
slope efficiency as high as 44%, which suggests that the fabricated
Nd:YAG ceramic waveguides are promising candidates for efficient
integrated laser sources.
URI
ISSN
1094-4087
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- ALF. Artículos [314]