Abstract
We demonstrate an efficient single-frequency Tm-doped fiber laser at 2050 nm. A ring cavity scheme is employed to boost the net gain at the wavelength. A piece of Tm/Ho-codoped fiber with an absorption coefficient at 2050 nm higher than that of a Tm-doped fiber is used to establish the dynamic Bragg grating for enhancing the frequency selection capability. A single-frequency output of 215 mW is obtained under 2 W of 1570-nm pump power, with the slope efficiency being 22%. To the best of our knowledge, this is the highest single-frequency all-fiber laser oscillator output power above 2 µm.
© 2022 Optica Publishing Group
Full Article | PDF ArticleCorrections
2 August 2022: A typographical correction was made to the author listing.
More Like This
Chaodu Shi, Peiheng Jiang, Shijie Fu, Quan Sheng, Lin Chen, Wei Shi, Cailing Fu, Yiping Wang, and Jianquan Yao
Opt. Lett. 48(23) 6144-6147 (2023)
Patrick Forster, Clément Romano, Julian Schneider, Marc Eichhorn, and Christelle Kieleck
Opt. Lett. 47(10) 2542-2545 (2022)
Zhenshuai Wei, Jizhe Luan, Lu Huang, Wei Zhao, Xian Zhao, Zhigang Zhao, Zhenhua Cong, and Zhaojun Liu
Opt. Lett. 48(19) 5109-5112 (2023)