Li Daijun, Ma Zhe, Haas Rüdiger, Schell Alexander, Zhu Peng, Shi Peng, Du Keming
Edgewave GmbH, Innovative Laser Solutions, Schumanstrasse 18B, 52146 Würselen, Germany.
Opt Lett. 2008 Aug 1;33(15):1708-10. doi: 10.1364/ol.33.001708.
We have developed a novel electro-optic Q-switched diode-end-pumped solid slab laser that combines high energy, short pulse width, high repetition rates, and diffraction-limited beam quality. With two partially end-pumped Nd:YLF slabs and a 100 mm long off-axis positive branch stable-unstable oscillator, 24.2 mJ, 7.1 ns electro-optic Q-switched pulse at 1 kHz repetition rate with a beam quality of M(x)(2)=1.4 and M(y)(2)=1.3 was generated. The peak power reached 3.5 MW. Efficient external second-harmonic generation was achieved by use of lithium triborate with low peak-power intensity.
