Patent ID: 9025626
Filing Date: 2015-05-05
Classification: H01S

Abstract:
1. A semiconductor laser excited solid state laser device, comprising: a semiconductor laser which outputs a single transverse mode excitation light of fixed wavelength at a set output level, without undergoing mode hopping, at a set temperature; a driving device which drives said semiconductor laser; a solid state laser module which has maximum output efficiency at said set temperature and which generates, from said excitation light, an output light of a predetermined output level when an optical noise is at or below a fixed level and the output level of said excitation light is said set output level; a single temperature adjustment device which adjusts the temperature of said semiconductor laser and the temperature of said solid state laser module; and a control device which controls said driving device such that said output light will be at said predetermined output level without undergoing mode hopping based on wavelength shift characteristics of said semiconductor laser dependent on output level, and controls said temperature adjustment device such that the temperature of said semiconductor laser and said solid state laser module will be said set temperature without undergoing mode hopping based on wavelength shift characteristics of said semiconductor laser dependent on temperature.