Laser light source device

Abstract

Provided is a laser light source device stably operating, stably emitting laser light having a predetermined wavelength, and ensuring lower power consumption than that of the related art. The laser light source device includes a semiconductor laser element, a heat radiation part provided on one surface side of the semiconductor laser element, a heat conductive part having heat conductive characteristics, provided in contact with the one surface of the semiconductor laser element and the heat radiation part, configured to conduct heat generated in the semiconductor laser element to the heat radiation part, a wavelength measuring part configured to measure a wavelength of laser light, and a heat conductive characteristic control part configured to change the heat conductive characteristics of the heat conductive part based on the wavelength of the laser light, and control the wavelength of the laser light to fall within a predetermined wavelength range.

Dependencies are inferred from the claim text.