caa a22 4500 445367806 CHVBK 20180317142936.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00340-011-4485-4 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4485-4 Characterization of an Yb:YAG ceramic waveguide laser, fabricated by the direct femtosecond-laser writing technique [Elektronische Daten] [T. Calmano, A.-G. Paschke, J. Siebenmorgen, S. Fredrich-Thornton, H. Yagi, K. Petermann, G. Huber] 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 output coupling the slope efficiency is 35%, which is much lower in comparison to the case of lower output coupling with a slope efficiency of 65%. This effect may be explained by inversion dependent loss mechanisms. Springer-Verlag, 2011 Calmano T. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut Paschke A.-G Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut Siebenmorgen J. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut Fredrich-Thornton S. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut Yagi H. Takuma Works, Konoshima Chemical Co. Ltd., 80 Kouda, 769-1103, Takuma, Mitoyo-gun, Kagawa, Japan aut Petermann K. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut Huber G. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut Applied Physics B Springer-Verlag 103/1(2011-04-01), 1-4 0946-2171 103:1<1 2011 103 340 https://doi.org/10.1007/s00340-011-4485-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4485-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Calmano T. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut NATIONALLICENCE 700 1- Paschke A.-G Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut NATIONALLICENCE 700 1- Siebenmorgen J. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut NATIONALLICENCE 700 1- Fredrich-Thornton S. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut NATIONALLICENCE 700 1- Yagi H. Takuma Works, Konoshima Chemical Co. Ltd., 80 Kouda, 769-1103, Takuma, Mitoyo-gun, Kagawa, Japan aut NATIONALLICENCE 700 1- Petermann K. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut NATIONALLICENCE 700 1- Huber G. Institute of Laser-Physics, Luruper Chaussee 149, 22761, Hamburg, Germany aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 103/1(2011-04-01), 1-4 0946-2171 103:1<1 2011 103 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer