High-power single-frequency handedness switchable vortex laser from an off-axis pumped Er:YAG nonplanar ring oscillator

Yang Yu, Weichong Wu, Jiawen Xiao, Lan Hai, Zhichao Zhang, Qing Wang, Shiyao Fu, Chunqing Gao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate a high-power single-frequency, handednessswitchable vortex laser at 1645 nm, directly generated from an off-axis pumped Er:YAG nonplanar ring oscillator. Narrow-linewidth Laguerre-Gauss (LG) modes of orders -2, -1, +1, and +2 are obtained, with output powers of 4.53W, 7.09W, 7.03W and 4.58W, respectively. The linewidth of the LG0,+2 mode is measured to be 3.4 kHz. This work provides a compact and high-power vortex laser suitable for applications such as optical remote sensing.

Original languageEnglish
Pages (from-to)2590-2593
Number of pages4
JournalOptics Letters
Volume50
Issue number8
DOIs
Publication statusPublished - 15 Apr 2025
Externally publishedYes

Cite this