| 摘要 |
PROBLEM TO BE SOLVED: To allow lights emitted from a plurality of laser chips to travel along one and the same axis, by holding, in one laser package, a plurality of laser chips emitting laser lights of different wavelengths and an optical element for adjusting an optical axis, in order to allow transmitted laser light and reflected laser light to travel along one and the same axis. SOLUTION: Laser light emitted from a laser chip 2 preliminarily positioned together with a sub mount 4b and reflected by a wavelength selective optical element 3 is outputted as parallel light through an optical lens or other device. With the parallel light being monitored, light is emitted from another laser chip 1 with the sub mount 4b including the laser chip 2 being moved to make the light emitted from the laser chip 1 into parallel light. The parallel light emitted from the laser chip 1 is aligned with the parallel light preliminarily emitted from the laser chip 2. By this method, the deviation of optical light emitting points between the laser chips 1, 2 can be eliminated, and laser lights emitted from the two laser chips can travel along one and the same optical axis. |
