Direct generation of an optical vortex beam from a diode-pumped Yb:MgWO4 laser. (27th July 2017)

• Record Type: Journal Article
• Authors: Lu, Jieling; Lin, Haifeng; Zhang, Ge; Li, Bingxuan; Zhang, Lizhen; Lin, Zhoubin; Chen, Yung-Fu; Petrov, Valentin; Chen, Weidong
• Is Part Of: Laser physics letters. Volume 14:Number 8(2017:Aug.)
• Publication Date: 2017-07-27
• Subjects: diode-pumped lasers -- beam characteristics -- profile -- intensity and power -- spatial pattern formation; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aa7878
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: We report for the first time, to the best of our knowledge, the generation of a multi-watt optical vortex beam based on a novel monoclinic Yb 3+ -doped MgWO4 crystal. The robust first-order Laguerre–Gaussian doughnut beam (LG01 ) with high mode purity and good beam quality can be selectively excited without using any intra-cavity handedness-selective element. Our results demonstrate the potential of the Yb:MgWO4 crystal for generation of high-power optical vortex beams from compact solid-state lasers.