| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser beam output method for semiconductor laser and equipment that are not affected by an intensity change caused by a beam shift, and stabilize beam output for a long time. SOLUTION: In a laser beam output method in which a laser beam with a specified wavelength is extracted from semiconductor laser that oscillates laser beams with multiple wavelengths and then, part of the laser beam with the specified wavelength is reflected to feed back optically to semiconductor laser, part of the laser beam is reflected such that the area of the laser beam optically fed back is different from that of the laser beam with the specified wavelength before being reflected. The present invention includes laser beam output equipment for the semiconductor laser based on the laser output method. COPYRIGHT: (C)2004,JPO&NCIPI
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