is an optical technique used to produce light pulses with extremely high peak power, http://en.wikipedia.org/wiki/Q-switching. The technique is mainly applied for the generation... of nanosecond pulses of high energy and peak power. The Nuphoton 1.5 micron family of Q-switched pulsed fiber laser generates up to 200 kW power output pulses with 20 to 200 ns variable... pulse width. Typical applications of such lasers are material processing (e.g. cutting, drilling, and laser marking), pumping non linear frequency conversion devices and LIDAR...