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US 6,807,210 B2Granted
Systems and a method for generating blue laser beam
AssigneeNGK Insulators, Ltd.
InventorsMakoto Iwai, Takashi Yoshino, Minoru Imaeda
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AssigneeNGK Insulators, Ltd.
InventorsMakoto Iwai, Takashi Yoshino, Minoru Imaeda
Estimating the term…
An object of the present invention is to provide a practical device for generating blue laser beam having a wavelength of 457 nm. The present invention provides a device for generating blue laser beam. The device has a solid-state laser oscillator 3 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 6A, 6B provided in the oscillator 3, an illuminating means 1 for illuminating pump light beam to the oscillator 3, and a waveguide-type device 5 for generating harmonic wave. The oscillator 3 and reflecting means 1 constitute a resonator 7. The waveguide-type device 5 is provided outside of the resonator 7. The oscillator 3 oscillates laser beam having a wavelength of 914±1 nm, and the waveguide-type device 5 oscillates blue laser “E” having a wavelength of 457±1 nm.
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,
A method of generating blue laser beam, using 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 laser oscillator, and a waveguide-type device for generating harmonic wave,
Dependencies are inferred from the claim text.