发明授权
- 专利标题： Wavelength conversion method, wavelength conversion laser, and laser beam machining apparatus
- 专利标题（中）： 波长转换方法，波长转换激光和激光束加工装置
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申请号： US10853223申请日： 2004-05-26
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公开(公告)号： US07286282B2公开(公告)日： 2007-10-23
- 发明人: Tetsuo Kojima , Susumu Konno , Junichi Nishimae , Shinsuke Yura , Kazutoshi Morikawa , Atsuhiro Sono , Yukio Sato
- 申请人： Tetsuo Kojima , Susumu Konno , Junichi Nishimae , Shinsuke Yura , Kazutoshi Morikawa , Atsuhiro Sono , Yukio Sato
- 申请人地址： JP Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Leydig, Voit & Mayer, Ltd.
- 优先权： JP2003-147402 20030526; JP2003-147403 20030526; JP2004-025741 20040202
- 主分类号： G02F1/35
- IPC分类号： G02F1/35 ; H01S3/10
摘要：
A fundamental laser beam is wavelength converted through nonlinear optical crystals by traveling in one direction, sequentially through two nonlinear optical crystals arranged in series. A wavelength-converted laser beam is generated and includes wavelength-converted laser beams having polarized directions differing from each other by angles in a range from 45° to 90°. The two nonlinear optical crystals have crystal orientation axes differing by 45° to 90° when viewed along the optical axis of the laser beam.
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