A laser device is disclosed. The laser device includes a surface-emitting laser including a plurality of emission points, a lens array including a plurality of lenses arranged so as to correspond to a position of the surface-emitting laser; and a light condensing optical system that condenses a plurality of light fluxes emitted through the lens array and enters the condensed lights to an input end of an optical fiber. The light condensing optical system includes an aspheric lens having positive refractive power. Both of an incidence surface and an emission surface of the aspheric lens have aspheric shapes.