Optical vortex lattice mode generation from a diode-pumped Pr3+:LiYF4 laser

被引:17
|
作者
Rao, A. Srinivasa [1 ,2 ]
Miike, Taku [1 ]
Miyamoto, Katsuhiko [1 ,2 ]
Omatsu, Takashige [1 ,2 ]
机构
[1] Chiba Univ, Grad Sch Engn, Chiba 2638522, Japan
[2] Chiba Univ, Mol Chiral Res Ctr, Chiba 2638522, Japan
基金
日本学术振兴会;
关键词
Pr; YLF laser; off-axis pumping; mode selection; beam shaping; laser resonator; optical vortex lattices; ORANGE; BEAMS; RED;
D O I
10.1088/2040-8986/ac067d
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report on the direct generation of optical vortex lattice (OVL) modes from a diode-pumped Pr3+:LiYF4 (Pr:YLF) laser achieved by employing off-axis (transverse) and defocused (longitudinal) pumping geometries in the laser medium. OVL modes with more than 40 phase singularities are generated. The experimentally observed OVL modes are well supported by a theoretical analysis based on the superposition of Hermite-Gaussian modes. We also discuss the intracavity frequency doubling of the OVL modes. The proposed OVL mode laser system can be applied to fundamental optical science and advanced material engineering.
引用
收藏
页数:9
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