Generation of coupled orbital angular momentum modes from an optical vortex parametric laser source

被引：6
|
作者：
Mamuti, Roukuya [1 ]
Goto, Shunsuke [1 ]
Miyamoto, Katsuhiko [1 ,2 ]
Omatsu, Takashige [1 ,2 ]
机构：
[1] Chiba Univ, Grad Sch Adv Integrat Sci, Inage Ku, 1-33 Yayoi Cho, Chiba 2638522, Japan
[2] Chiba Univ, Mol Chiral Res Ctr, Inge Ku, 1-33 Yayoi Cho, Chiba 2638522, Japan
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 25期
基金：
日本学术振兴会; 日本科学技术振兴机构;
关键词：
2ND-HARMONIC GENERATION; TOPOLOGICAL CHARGE; LIGHT; BEAMS; METROLOGY; CHIRALITY; VORTICES;
D O I：
10.1364/OE.27.037025
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the generation of flower (wheel) modes, which manifest coupled orbital angular momentum (OAM) modes, from a vortex pumped optical parametric oscillator simply by employing a pump source with a short temporal coherence time. This vortex oscillator was also developed to generate a further higher-order vortex signal output with l(s) =2-4 by replacement of the pump source with a longer coherence time. The signal and idler outputs were tuned within wavelength ranges of 745-955 nm and 1200-1855 nm, respectively. The maximum signal output energy of 1.2 mJ was measured with an optical efficiency of 15.6%. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：37025 / 37033
页数：9
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