Patent ID: 7773641

Claim:
An optically pumped disk type solid state laser oscillator comprising: a thin film laser gain medium formed in a cylindrical form and configured to generate a stimulated emission in response to an inputted excitation light and having a through-hole in a central area of the thin film laser gain medium and being formed in a cylindrical form; a ring mirror having a ring form whose central axis is same to a central axis of the thin film laser gain medium and configured to have a mirror surface opposing to a side surface of the thin film laser gain medium; a conical mirror whose central axis is same to the central axis of the thin film laser gain medium and arranged in the through-hole; and an output mirror arranged on an extension of the central axis and whose mirror surface and the conical mirror are opposingly faced to each other, wherein the output mirror has a through hole which is tube shape whose central axis is same to the central axis of the thin film laser gain medium as a coupling hole through which a laser light generated in the optically pumped disk type solid state laser oscillator is outputted.