Patent ID: 6807210
Filing Date: 2004-10-19
Classification: G02F,H01S

Abstract:
A device for generating blue laser beam comprising a solid-state laser oscillator composed of Nd-doped YVO4 crystal and having a length of not smaller than 0.1 mm and not larger than 1.0 mm, a reflecting means provided in said solid-state laser oscillator, an illuminating means for illuminating pump light beam to said solid-state laser oscillator, and a waveguide-type device for generating harmonic wave,wherein said solid-state laser oscillator and said reflecting means constitute a resonator, said waveguide-type device is positioned outside of said resonator, said solid-state laser oscillator oscillates laser beam having a wavelength of 914Â±1 nm and said waveguide-type device generates blue laser beam having a wavelength of 457Â±1 nm.