Cylindrical vector beam rotary Nd∶YAG disk laser with birefringent crystal

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: Lasers,Optical Amplifiers,and Laser Optics
• 页码范围: 16-19
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL202018.121401

摘要

A rotating neodymium-doped yttrium aluminum garnet(Nd∶YAG)disk laser resonator for efficiently generating vector beams with azimuthal and radial polarization is demonstrated.In the study,the laser crystal rotary for thermal alleviation and polarization discrimination uses c-cut ytterbium vanadate(YVO4).The laser output could be switched between azimuthal and radial polarizations by simply adjusting the cavity length.The laser power reached 4.38 W and 4.64 W for azimuthally and radially polarized beams at the slope efficiencies of 45.3％and 48.5％,respectively.Our study proved that an efficient,high-power vector rotary disk laser would be real-istic.