Single- and dual-tube He–Ne lasers for high-power excitation of LG<sub>01</sub>-mode vortex beam
Abstract In this study, aiming to extend the power of LG 01 -mode vortex light at 632.8 nm, the commercial He–Ne laser was upgraded to dual-tube gain geometry with the assistance of an intracavity spot defect for spatial filtering. We investigated the impact of using single and double He–Ne gas gain tubes on the powers of vortex laser output, and achieved a maximum 4.7 mW power of LG 01 -mode vortex light, corresponding to an optical–optical conversion efficiency of 39.2% and making it the highest power of vortex light obtained in He–Ne laser up to now.
Authors
- Jiaxin Song (ORCID: https://orcid.org/0000-0002-3728-0224)
- Dawei Zhang (ORCID: https://orcid.org/0000-0002-0841-7826)
- Jian Li (ORCID: https://orcid.org/0000-0003-3439-7539)
- Qisong Li
- Weilin Cao (ORCID: https://orcid.org/0000-0003-3439-7539)
- Xinqiao Lu
Institutions
- University of Shanghai for Science and Technology (CN)
Publication Details
- Journal
- Applied Physics Express
- Published
- 2024-10-01
- DOI
- https://doi.org/10.35848/1882-0786/ad8410
- Citations
- 1
- Primary Topic
- Orbital Angular Momentum in Optics
- Type
- article
- Field-Weighted Citation Impact
- 0.34
Funders
- National Natural Science Foundation of China
- Science and Technology Commission of Shanghai Municipality