1. Optical vortex lattice mode generation from a diode-pumped Pr3+:LiYF4 laser.
- Author
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Rao, A Srinivasa, Miike, Taku, Miyamoto, Katsuhiko, and Omatsu, Takashige
- Subjects
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OPTICAL lattices , *LASER pumping , *SEMICONDUCTOR lasers , *SECOND harmonic generation , *OPTICAL vortices , *LASERS , *MATERIALS science - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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