Abstract
Pulsed lasers with nanosecond width and high repetition rate are widely used in many fields such as material processing, laser ranging, remote sensing and so on. Diode pumped Q-switched oscillator is a mostly used meathod to realize nanosecond pulsed lasers with a merit of high efficiency and good beam quality. Using the conventional Q-switched meathods, however, it is difficult to obtain short nanosecond pulse at high repetition rates. This is due to the fact that the pulse width is variable depending on the laser medium’s gain and the operating repetition rate. In comparison, cavity-dumping structure can realize short constant pulse duration, which is determined by the switching time of Q-switch apparatus and the cavity length [1].
© 2013 IEEE
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