| 摘要 |
PROBLEM TO BE SOLVED: To stably extract laser light of symmetrical intensity distribution by uniformly adjusting the excitation distribution. SOLUTION: Excitation distribution of a laser rod 1, when the laser rod 1 is irradiated with an excitation light generated by semiconductor lasers 2 to 7, is monitored by a CCD camera 30 for monitoring from a mirror 28 for monitoring through a monitor optical system 29. Based on the monitored excitation distribution of the laser rod 1, variable resistors 22-27 which are respectively connected in parallel with the semiconductor lasers 2 to 7 are adjusted by an output/wavelength control circuit 31 for controlling the output and wavelength of each of the semiconductor lasers 2 to 7. |
