Highly repetitive laser employing a rotating wedge

Abstract

The present invention relates to a highly repetitive laser employing a rotating wedge, and more specifically, a laser employing a rotating wedge which can provide a laser beam having a uniform spatial intensity profile with a high repetition rate. The highly repetitive laser of the invention is characterized by positioning a rotating wedge between a main resonator and a focusing lens to change the point in which a laser beam emitted from the main resonator is focused, in a laser which comprises a main resonator consisting of a laser medium, a passive Q-switching material and partially reflective mirrors and an auxiliary resonator consisting of a focusing lens and a cell. The present invention can improve the efficiency of high-power conventional lasers; and, therefore, it can be applied in advanced experiments such as second harmonic generation and amorphous silicon annealing and in the precision industry which requires a highly repetitive laser, since it can provide a laser beam having a uniform pattern and high directional properties.