Patent ID: 6822985
Filing Date: 2004-11-23
Classification: H01S

Abstract:
A laser diode pumped solid state laser apparatus, comprising:a laser diode light source providing a pumping light; a solid-state laser medium that receives the pumping light and provides a laser oscillation light from ends thereof; two resonator reflective surfaces at respective said ends of said laser medium and that reflect the laser oscillation light provided from the respective ends of said laser medium back to said ends, said laser medium being between and aligned with said two reflective surfaces so as to define an optical axis for the laser oscillation light through said ends and said reflective surfaces; and a fluorescence detector that includes a fluorescence receiving surface that receives fluorescence emitted by said laser medium directly from one of said ends of said laser medium, said fluorescence receiving surface being between said laser medium and one of said reflective surfaces and directly adjacent to said optical axis without blocking said optical axis.