Abstract
Using the direct femtosecond-laser writing technique tracks of modified material were written in an Yb(15%):YAG ceramic. Due to a stress-induced change of the refractive index between two parallel tracks waveguiding was achieved in channels between the tracks. Laser oscillation of these channel waveguides at a wavelength of 1030 nm was demonstrated with a maximum output power of 0.7 W. The investigation of two different outcoupling transmissions of 99% and 91% revealed, that for the higher outcoupling transmission the slope efficiency is with 35% much lower than for the outcoupling transmission of 91% with a slope efficiency of 65%. This effect may be explained by inversion dependent loss mechanisms.
© 2011 Optical Society of America
PDF ArticleMore Like This
Jörg Siebenmorgen, Thomas Calmano, Klaus Petermann, and Günter Huber
LMTuC2 Femtosecond Laser Microfabrication (LM) 2009
Ben McMillen, Botao Zhang, Kevin Chen, Antonio Benayays, and Daniel Jaque
JTuI105 CLEO: Applications and Technology (CLEO:A&T) 2011
Thomas Calmano, Jörg Siebenmorgen, Klaus Petermann, and Günter Huber
CTuU2 Conference on Lasers and Electro-Optics (CLEO:S&I) 2010