Title :
Sub-mJ nano-second vortex pulse generation from a stressed Yb-doped double-clad fiber amplifier
Author :
Koyama, Mio ; Hirose, Tetsuya ; Tanaka, Yuichi ; Miyamoto, Katsuhiko ; Omatsu, Takashige
Author_Institution :
Grad. Sch. of Adv. Integration Sci., Chiba Univ., Chiba, Japan
Abstract :
In this paper, we extend our previous work to generate high-energy nano-second vortex pulses from a Yb-doped double-clad fiber amplifier in combination with a diode-pumped Q-switched Nd:YVO4 laser. The maximum output energy of 0.83 mJ with a peak power of >;59 kW and a pulse repetition frequency of 10 kHz was measured at a pump power of 25.7 W, corresponding to an average power of 8.3 W.
Keywords :
Q-switching; neodymium; optical fibre amplifiers; optical pulse generation; optical pumping; yttrium compounds; YVO4:Nd; diode-pumped Q-switched laser; double-clad fiber amplifier; energy 0.83 mJ; frequency 10 kHz; nanosecond vortex pulse generation; power 25.7 W; power 8.3 W;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5943117
