Title :
High power Q-switched fiber laser system emitting 26 mJ pulses with near diffraction-limited beam quality
Author :
Stutzki, Fabian ; Jansen, Florian ; Liem, Andreas ; Jauregui, Cesar ; Limpert, Jens ; Tünnermann, Andreas
Author_Institution :
Inst. of Appl. Phys., Friedrich-Schiller-Univ. Jena, Jena, Germany
Abstract :
We demonstrate a high-power Q-switched fiber laser system emitting 26 mJ pulse energy with sub 60 ns pulses. In combination with a repetition rate of 5 kHz an average power of more than 140 W was achieved. These results were enabled by a Large-Pitch fiber, which allows effective single-mode operation with high beam quality (M2 <; 13) and mode field diameters exceeding 100 μm.
Keywords :
Q-switching; fibre lasers; laser beams; energy 26 mJ; frequency 5 kHz; high power Q-switched fiber laser system; large pitch fiber; near diffraction limited beam quality; single mode operation; Fiber lasers; Laser beams; Laser modes; Measurement by laser beam; Optical fiber amplifiers; Optical fiber polarization; Power generation;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
