Title :
63-W average power from femtosecond Yb:Lu2O3 thin disk laser
Author :
Baer, C.R.E. ; Kränkel, C. ; Saraceno, C.J. ; Heckl, O.H. ; Golling, M. ; Südmeyer, T. ; Peters, R. ; Petermann, K. ; Huber, G. ; Keller, U.
Author_Institution :
Dept. of Phys., ETH Zurich, Zurich, Switzerland
Abstract :
In this work, we demonstrate the successful power scaling of Yb:Lu2O3 in pulsed and cw-operation. We used an Yb:Lu2O3 disk with a thickness of 250 Im and a Yb-doping concentration of 2%. The disk was pumped at 976 nm with a 0.5 nm broad fiber coupled diode. The pump spot diameter was 1.9 mm. In a simple multimode resonator with a curved outcoupling mirror (R = 100 mm, T = 2.7%) we obtained 149 W continuous wave (cw) output power at 1034 nm. The incident pump power was 204 W, which corresponds to an optical-to- optical efficiency (77opt) of 73%. This is the highest output power reported from an Yb:Lu2O3 laser so far.
Keywords :
lutetium compounds; optical pumping; optical resonators; solid lasers; ytterbium; Lu2O3:Yb; power 149 W; power 204 W; power 63 W; size 1.9 mm; size 250 mum; wavelength 1034 nm; wavelength 976 nm; Bandwidth; Conducting materials; Laser theory; Mirrors; Optical materials; Optical pulses; Optical pumping; Power generation; Power lasers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192627
