Patent ID: 6711184
Filing Date: 2004-03-23
Classification: H01S

Abstract:
A diode-pumped laser with internal frequency doubling comprising:a solid-state laser crystal disk being provided inside a laser cavity as a laser-active medium; a solid-state laser crystal disk which shortest dimension is directed along the cavity axis and having two large area surfaces; one of the two large area surfaces being mounted to a cooling element to generate a temperature gradient in the crystal disk that is directed predominantly parallel to the cavity axis; a non-linear optical crystal for converting laser radiation with a fundamental laser wavelength into laser radiation of another wavelength with a non-linear conversion efficiency (&eegr;SHG) determined by the non-linear optical crystal; wherein conversion of the laser radiation with fundamental laser wavelength into laser radiation of another wavelength is carried out with a lower non-linear conversion efficiency (&eegr;SHG) than that required for achieving maximum power of the converted laser radiation.