Patent ID: 9203210
Filing Date: 2015-12-01
Classification: H01S

Abstract:
1. A Q-switched laser device comprising: an end-cap including an undoped (not containing rare earth element) yttrium aluminum garnet crystal (YAG); a laser medium including a doped (containing rare earth element) YAG; and a Q-switch, wherein the end-cap, laser medium, and Q-switch are arranged on a straight line in this order, <100> or <110> axis for the undoped YAG included in the end-cap and the doped YAG included in the laser medium is extending along the straight line, the undoped YAG included in the end-cap and the doped YAG included in the laser medium are bonded together and a pulse laser is output through the Q-switch by inputting a pulse excitation light to the laser medium through the end cap.