Patent ID: 7801187
Filing Date: 2010-09-21
Classification: H01S

Abstract:
1. A mode-locked laser device comprising: a Fabry-Perot resonator; a mode-locking element is a saturable absorbing mirror disposed within the resonator; a solid-state laser medium disposed within the resonator; and an exciting means for applying excitation light to the solid-state laser medium, wherein opposite ends of the resonator, the mode-locking element and the solid-state laser medium are disposed to provide an average beam diameter of lasing light of not more than 150 μm on the mode-locking element and an average beam diameter of the lasing light of not more than 200 μm within the solid-state laser medium, wherein the opposite ends of the resonator are formed by a concave mirror and the mode-locking element, and the exciting means applies the excitation light to the resonator from the back side of the concave mirror along a direction substantially parallel to the optical axis of the resonator.