Mode-locked cylindrical vector vortex beam unlocked the generation of a 2 µm multidimensional ultrafast laser
The development of multidimensional lasers, particularly 2 µm vector vortex pulsed beams, has garnered significant interest for applications in laser medicine and optical communication. This paper reports the successful achievement of mode-locked azimuthally polarized vector beams (APVB) and radially polarized vector beams (RPVB) in a c-cut Tm:CaYAlO<sub>4</sub> crystal cavity. Utilizing a semiconductor saturable absorber mirror (SESAM), the laser produced output powers of 110 mW (APVB) and 98 mW (RPVB), with pulse durations of 41.2 ps and 49.7 ps, and vortex topological charges of -1 and +1, respectively. This represents the first stable mode-locked states of the cylindrical vector vortex beam in a 2 µm solid-state laser.
Authors
- Zhilan Xie (ORCID: https://orcid.org/0000-0002-1350-5273)
- Yue Gong
- Zuoming Qian
- T. Yao (ORCID: https://orcid.org/0009-0001-1035-8060)
- Baohua Jia (ORCID: https://orcid.org/0000-0002-6703-477X)
- Haotian Wang (ORCID: https://orcid.org/0000-0001-8426-5783)
- Fei Wang (ORCID: https://orcid.org/0000-0003-0280-5606)
- XU Xiao-dong (ORCID: https://orcid.org/0009-0001-9473-4683)
- Tong Xu
- Jiacheng Ma (ORCID: https://orcid.org/0000-0002-6687-3424)
- Wei Zhou (ORCID: https://orcid.org/0009-0001-1577-0820)
- Qiang Zhu (ORCID: https://orcid.org/0000-0001-5230-6448)
- Shen Deyuan (ORCID: https://orcid.org/0000-0002-4796-9156)
- hui kang
- Kairui Miao
- Yishan Wang (ORCID: https://orcid.org/0000-0002-0268-3453)
- Xiaozhao Song
Institutions
- Australian Research Council (AU)
- Xi'an Institute of Optics and Precision Mechanics (CN)
Publication Details
- Journal
- Optics Express
- Published
- 2025-03-04
- DOI
- https://doi.org/10.1364/oe.551645
- Citations
- 2
- Primary Topic
- Orbital Angular Momentum in Optics
- Type
- article
- Field-Weighted Citation Impact
- 2.49
Funders
- Natural Science Foundation of Jiangsu Province
- Xuzhou Science and Technology Program