SCPEM-Q-switching of a fiber-rod-laser

University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, SI-1000 Ljubljana, Slovenia.
Optics Express (Impact Factor: 3.53). 03/2012; 20(7):7415-21. DOI: 10.1364/OE.20.007415
Source: PubMed

ABSTRACT We demonstrate high-frequency Q-switching of a fiber rod laser with a Single-Crystal Photo-Elastic Modulator (SCPEM) made of a LiTaO3-crystal. This type of photo-elastic modulator can be driven simultaneously with two different eigenmodes to achieve a shorter rise time, which is essential for high-power operation. When operated in the laser cavity, a pulse repetition frequency of 183.6 kHz with an average power of 47 W, a pulse duration of 26 ns, and a peak power of 10.5 kW was achieved. (C) 2012 Optical Society of America