Patent ID: 7907646

Claim:
A laser light source comprising: plural semiconductor lasers; a solid laser medium; a wavelength conversion element; a first reflection layer formed on one facet of the solid laser medium; and a second reflection layer formed on one facet of the wavelength conversion element, wherein the solid laser medium and the wavelength conversion element are disposed between the first reflection layer and the second reflection layer; the first reflection layer and the second reflection layer form a laser resonator having both reflection end facets approximately parallel to each other; plural pump parts of the solid laser medium are pumped by the plural semiconductor lasers; the plural pump parts are separated from each other by 300 μm or more; the solid laser medium comprises plural solid lasers having different compositions or materials; the wavelength conversion element has plural parts having difference phase matches; the solid lasers generate laser lights of difference wavelengths for the respective pump parts; and the plural pump parts of the solid laser medium have different temperatures in the respective oscillation states, and oscillate laser lights having different oscillation wavelengths or different oscillation spectrums due to the temperature differences.