Direct generation of ultrafast vortex beam from a Tm:CaYAlO4 oscillator featuring pattern matching of a folded-cavity resonator
文献类型:期刊论文
作者 | Cao, Xue4; Liu, Yangyu4; Xian, Anhua4; Li, Yifei4; Wu, Kun4; Xu, Xiaodong4; Zhou, Wei4; Wang, Haotian4; Huang, Haitao4; Jia, Baohua3 |
刊名 | Optics Express |
出版日期 | 2021-11-22 |
卷号 | 29期号:24页码:39312-39322 |
ISSN号 | 10944087 |
DOI | 10.1364/OE.437584 |
产权排序 | 3 |
英文摘要 | Optical vortices, beams with spiral wavefronts and screw phase dislocations have been explored in applications in optical manipulation, quantum optics, and the next generation of optical communications. In traditional methods, optical vortices are generated using space light modulators or spiral phase plates, which would sharply decrease the integration of optical systems. Different from previous transverse mode conversion outside the cavity, here we experimentally demonstrate a direct generation of ultrafast vortex beam from a Tm:CaYAlO4 oscillator by pattern matching of a six-mirror-folded-cavity resonator. By accurately adjusted the angle of the end mirror and the distance L between the M4 and the SESAMs to control the beam diameter of laser incidence on the gain medium in the sagittal and tangential planes, a stable 2 µm ultrafast vortex laser emission of annular Laguerre–Gaussian (LG) mode was obtained with a maximum output power of 327 mW and pulse duration of 2.1 ps. A simple YAG crystal plate was used as handedness selector and a homemade Mach–Zehnder (MZ) interferometer has verified the vortical property of the LG01 mode. By furtherly controlling the cavity mode pattern matching, other stable transverse-mode operations for TEM00, high-order Hermite-Gaussian (HG) transverse mode and doughnut-shaped beams were successfully realized. This work provides a flexible and reliable way to generate mid-infrared ultrafast vortex beams and is of special significance for applications in the areas of molecular spectroscopy and organic material processing amongst others. © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
语种 | 英语 |
出版者 | The Optical Society |
WOS记录号 | WOS:000722251200032 |
源URL | [http://ir.opt.ac.cn/handle/181661/95543] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
作者单位 | 1.Institute of mid infrared laser Technology (Jiangsu) Company, Ltd., Xuzhou; 221000, China 2.State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; 3.Centre for Translational Atomaterials, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, POB 218, Hawthorn; Vic; 3122, Australia; 4.Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou; 221116, China; |
推荐引用方式 GB/T 7714 | Cao, Xue,Liu, Yangyu,Xian, Anhua,et al. Direct generation of ultrafast vortex beam from a Tm:CaYAlO4 oscillator featuring pattern matching of a folded-cavity resonator[J]. Optics Express,2021,29(24):39312-39322. |
APA | Cao, Xue.,Liu, Yangyu.,Xian, Anhua.,Li, Yifei.,Wu, Kun.,...&Shen, Deyuan.(2021).Direct generation of ultrafast vortex beam from a Tm:CaYAlO4 oscillator featuring pattern matching of a folded-cavity resonator.Optics Express,29(24),39312-39322. |
MLA | Cao, Xue,et al."Direct generation of ultrafast vortex beam from a Tm:CaYAlO4 oscillator featuring pattern matching of a folded-cavity resonator".Optics Express 29.24(2021):39312-39322. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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