Patent ID: 7411990
Filing Date: 2008-08-12
Classification: H01S

Abstract:
1. A laser-diode-excited solid-state laser apparatus comprising: a GaN-based compound laser diode which emits an excitation laser beam; and a solid-state laser crystal which is doped with Eu3+, and emits a solid-state laser beam generated by a transition from 5D0 to 7F2 when the solid-state laser crystal is excited with said excitation laser beam, wherein the solid-state laser crystal is a bulk structure YAG solid-state crystal, and the solid-state laser crystal includes a first coating disposed on a backward end surface of the solid-state crystal and a second coating disposed on a forward end surface of the solid-state laser crystal, which enable the solid-state crystal to emit the solid-state laser beam generated by the transition from 5D0 to 7F2, wherein said solid state laser crystal is doped with no rare-earth ion other than Eu3+.