Work

Investigating high-energy Hermite–Gaussian and vortex laser generation in alexandrite

Year: 2025

Type: article

Abstract: This paper presents an investigation of the secondary saturation characteristics of a HfTe2 saturable absorber. Pulse energies of 5.85 and 7.4 mJ were demonstrated with a high-order Hermite–Gaussian (HG) laser and a vortex laser, respectively, using alexandrite as the gain medium. To the best of our knowledge, these are the highest pulse energies directly generated with HG and vortex lasers. To broaden the applications of high-energy pulsed HG and vortex lasers, wavelength tuning in the region of 40 nm was achieved using an etalon.

Source: High Power Laser Science and Engineering

DOI: 10.1017/hpl.2025.34

Authors: Enlin Cai, Shuaiyi Zhang, Tao Li, Jie Wang, Min Chen

Institutions: Chinese Academy of Sciences, University of Chinese Academy of Sciences, Qingdao University of Science and Technology, Shandong University

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,900

Funders: Salt Science Research Foundation, National Natural Science Foundation of China