Abstract
Optical vortex arrays have been achieved in an end-pumped ${\rm Nd}{:}{\rm YVO}_4$ laser pumped by an annular beam. Spontaneous transverse mode locking of Laguerre–Gaussian modes in different frequency-degenerate families has been obtained by merely adjusting the pump power. A maximum output power of 0.88 W and optical conversion efficiency of 13.6% are achieved for optical vortex arrays. Optical vortex arrays formed in different frequency-degenerate families of Laguerre–Gaussian modes can be actively controlled by the position of the axicon. This work provides a way to research transverse mode locking of Laguerre–Gaussian modes in different frequency-degenerate families based on annular beam pumping.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Kongtao Chen, Lixu Xu, Aodong Ni, Jiale Tang, Kaiwen Yi, Fuqiang Jia, Dun Qiao, Kang Li, and Nigel Copner
Opt. Lett. 48(10) 2599-2602 (2023)
Hsing-Chih Liang and Han-Yu Lin
Opt. Lett. 45(8) 2307-2310 (2020)
Qiang Zhu, Xiaozhao Song, Luyao Li, Hui Kang, Tianchen Yao, Guangmiao Liu, Kairui Miao, Wei Zhou, Haotian Wang, Xiaodong Xu, Baohua Jia, Yishan Wang, Fei Wang, and Deyuan Shen
Opt. Lett. 49(13) 3709-3712 (2024)