DEVICE AND METHOD FOR CONTROLLING PUMPING DISTRIBUTION OF SOLID LASER MEDIUM

摘要

A pumping distribution controller (10) comprising a moving unit (40), a measuring section (50) and a control section (60) in addition to a solid laser medium (31) and a pumping light source (32). The moving unit can alter the distance between the solid laser medium and the pumping light source by moving the pumping light source. The measuring section measures the pumping distribution of the solid laser medium. The control section drives the moving unit depending on the measured pumping distribution to adjust the distance between the solid laser medium and the pumping light source. When a plurality of unit light sources (33) are stacked in the pumping light source, the intensity distribution of the pumping light with which the solid laser medium is irradiated depends on the distance between the solid laser medium and the pumping light source. Consequently, the pumping distribution of the solid laser medium is controlled appropriately by adjusting the distance and the thermal effect can be lessened.