Patent ID: 6477188
Filing Date: 2002-11-05
Classification: G02F

Abstract:
A laser light source device characterized by the following features:a solid state laser light source which produces laser light with a wavelength of greater than or equal to 1000 nm and less than or equal to 1800 nm; a means for producing a harmonic of the said laser light; a coherent light source laser which is excited by the harmonic; and a CLBO crystal means for producing laser light of increased intensity with a summed frequency, by vector-phase matching, with a wavelength of roughly 193 nm from the laser light which is emitted from the solid state laser light source, and from coherent light which is emitted from the coherent light source laser, wherein the angle between the laser light which is emitted from the first solid state laser light source and the coherent light which is emitted from the coherent light source laser is fixed at vector-phase matching angle of greater than 0 degrees, the two types of light being incident on the CLBO crystal means for producing a summed frequency.