Exploring the Origin of Lissajous Geometric Modes from the Ray Tracing Model

In this paper, we use the geometric optics and discuss the path of laser beam in a simple laser (concave-plano) cavity with the birefringence crystal. In specific lengths of the laser cavity, we can observe various types of Lissajous-like structural laser modes that can be simulated using our ray tr...

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Bibliographic Details
Published inPhotonics Vol. 11; no. 5; p. 456
Main Authors Zheng, Xin-Liang, Fang, Yu-Han, Chung, Wei-Che, Hsieh, Cheng-Li, Chen, Yung-Fu
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2024
Subjects
ABCD matrix
Approximation
Birefringence
birefringence crystal
Computer simulation
Crystals
distortion
geometric mode
Geometrical optics
high-order transverse mode
Laser beams
Laser industry
Laser modes
Laser pumping
Lasers
Neodymium lasers
Optics
Propagation
Ray tracing
Solid state lasers
structural light
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Summary:In this paper, we use the geometric optics and discuss the path of laser beam in a simple laser (concave-plano) cavity with the birefringence crystal. In specific lengths of the laser cavity, we can observe various types of Lissajous-like structural laser modes that can be simulated using our ray tracing model. At the end of this paper, we provide an adjusted ABCD matrix. With the adjusted ABCD matrix and iterative calculation, we can obtain the 3D trajectories which are similar to the experimental results. These structural laser modes can be realized by a Nd:YVO4 solid-state laser with off-axis pumping. From the comparison between the experimental data and the numerical data, we clarify the relationship between the 3D Lissajous-like structural laser modes and ray trajectory in the laser cavity.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics11050456