Year: 2025
Type: article
Abstract: This study presents a method for direct mode control in an all-solid-state laser system using a vortex retarder, enabling the generation of vector vortex beams with topological charges of ±1, ±8, and ±32.The intracavity beam dynamics of vector vortex beams were investigated, achieving efficient conversion from linearly polarized Gaussian modes to vector-polarized Laguerre-Gaussian (LG) modes.The system demonstrates robust generation of multiple vector vortex modes at 1064 nm, with maximum output powers of 9.37 W (LG 0,-1 ), 9.56 W (LG 0,+1 ), 5.33 W (LG 0,±8 ), and 4.05 W (LG 0,±32 ).The first-order vector vortex's measured radial and azimuthal polarization purities reached 92.36% and 96.03%, respectively.The high slope efficiencies obtained in experiments establish critical benchmarks for developing compact vector vortex laser sources.
Source: Chinese Optics Letters
Institutions: Shandong Normal University, Henan Academy of Sciences
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4416776201