ULTRASHORT FEMTOSECOND LASER APPARATUS FOR HIGH-BRIGHTNESS BEAM

摘要

Provided is a femtosecond laser apparatus comprising: a first laser medium having Ng, Np, and Nm axes that are vertical to each other in a space; a second laser medium arranged to have an Np axis substantially parallel to the Ng axis of the first laser medium, an Nm axis substantially parallel to the Np axis of the first laser medium, and an Ng axis substantially parallel to the Nm axis of the first laser medium; and a first laser diode and a second laser diode that are arranged adjacent to the first laser medium and the second laser medium. The first laser medium and the second laser medium are placed side by side with respect to a proceeding direction of a laser beam generated from the first and second laser media so that the first laser medium has a height (H) parallel to the Np axis greater than or less than a width (W) parallel to the Nm axis and the second laser medium has a height (H) parallel to the Nm axis less than or greater than a width (W) parallel to the Ng axis.