Patent ID: 6111900
Filing Date: 2000-08-29
Classification: H01S

Abstract:
A solid-state laser apparatus comprising:a laser crystal;a semiconductor laser configured to emit an exciting laser light and pump said laser crystal; andan optical resonator configured to generate a light of a laser fundamental wave, said optical resonator having an interior, including,said laser crystal which emits the light of the laser fundamental wave upon receiving said exciting laser light,a non-linear optical crystal disposed in the interior of said optical resonator and configured to generate a light of a secondary harmonic wave from the light of said laser fundamental wave,a spacer containing a central through hole, connecting and unitarily combining said laser crystal to said non-linear optical crystal to form an optical cavity between said laser crystal and said non-linear optical crystal, andan end surface interior to the optical resonator of at least one of said laser crystal and said non-linear optical crystal, configured to partially reflect the light of the laser fundamental wave,wherein said optical resonator generates and outputs the light of the secondary harmonic wave.