Patent ID: 7187703
Filing Date: 2007-03-06
Classification: H01S

Abstract:
1. A diode-pumped solid-state laser, comprising: a laser optical assembly including at least a first reflective surface, a first laser crystal, a second reflective surface, a second laser crystal, a nonlinear optical crystal and a third reflective surface in that order; a pumping laser diode; and a focusing optical assembly for focusing laser output from the laser diode onto the laser optical assembly; the laser optical assembly defining a first laser resonator defined between the first and third reflective surfaces to generate a laser radiation of a first wavelength by stimulated emission transition in the first laser crystal, and a second laser resonator defined between the second and third reflective surfaces to generate a laser radiation of a second wavelength by stimulated emission transition in the second laser crystal, the second laser crystal being adapted to be pumped by a same wavelength as the first laser crystal and not to effect an absorption transition or stimulated emission transition at the first wavelength; wherein the nonlinear optical crystal is adapted for phase matching so as to generate a laser radiation of a third wavelength by a sum-frequency mixing of the laser radiations of the first and second wavelengths, and the laser output from the laser diode focused onto the laser optical assembly simultaneously pumps both the first laser crystal and second laser crystal from a prescribed direction.