Highly efficient and precise laser processing by fiber laser with controlled spatial polarization

利用受控空间偏振的光纤激光器进行高效、精确的激光加工

• 批准号: 21360352
• 负责人: SATO Shunichi
• 金额: $ 11.48万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360352/
• 关键词: 偏光; レーザー; 加工

We performed the generation and amplification of laser beams with inhomogeneous polarization distribution. Especially, high quality seed beams with radial and azimuthal polarizations were generated and amplified by using an optical fiber. High power and high quality beams with radial and azimuthal polarizations were successfully achieved by using a birefringent laser material. Furthermore, the performance was improved by a thin disk and polarization selective mirrors as a result of suppression of thermal effects. Higher order transverse mode laser beams were also obtained.

我们实现了非均匀偏振分布激光束的产生和放大。特别地，利用光纤产生了具有径向和方位偏振的高质量种子光束并进行了放大。利用双折射激光材料成功地获得了高功率、高质量的径向和方位偏振光束。此外，由于抑制了热效应，通过薄盘和偏振选择镜改善了性能。还获得了高阶横模激光束。

项目成果

Generation of a Purely Single Transverse Mode Vortex Beam from a He-Ne Laser Cavity with a Spot-Defect Mirror

• DOI: 10.1155/2012/359141
• 发表时间: 2012
• 期刊: International Journal of Optics
• 影响因子: 1.7
• 作者: Ken'ichi Kano;Y. Kozawa;S. Sato

Generation of hollow scalar and vector beams using a spot-defect mirror

• DOI: 10.1364/josaa.27.002072
• 发表时间: 2010-09-01
• 期刊: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
• 影响因子: 1.9
• 作者: Ito, Akihiko;Kozawa, Yuichi;Sato, Shunichi
• 通讯作者: Sato, Shunichi

Self-healing of tightly focused scalar and vector Bessel-Gauss beams at the focal plane.

• DOI: 10.1364/josaa.28.000837
• 发表时间: 2011-05
• 期刊: Journal of the Optical Society of America. A, Optics, image science, and vision
• 作者: S. Vyas;Y. Kozawa;S. Sato

スカラービームとベクトルビーム

标量光束和矢量光束

• 发表时间: 2011
• 作者: 鶴永愛子;下村幸司;蔦岡孝則;笠置映寛;畠山賢一;Toshiji Mukai;佐藤俊一
• 通讯作者: 佐藤俊一

Lateral resolution enhancement of laser scanning microscopy by a higher-order radially polarized mode beam

• DOI: 10.1364/oe.19.015947
• 发表时间: 2011-08-15
• 期刊: OPTICS EXPRESS
• 影响因子: 3.8
• 作者: Kozawa, Yuichi;Hibi, Terumasa;Sato, Shunichi
• 通讯作者: Sato, Shunichi