期刊
OPTICS LETTERS
卷 47, 期 15, 页码 3964-3967出版社
Optica Publishing Group
DOI: 10.1364/OL.463202
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资金
- National Natural Science Foundation of China [61975146, 62075159, 62105240]
- Major Scientific and Technological Innovation Projects of Key R&D Plans in Shandong Province [2019JZZY020206]
- Shandong Province Taishan Industry Leading Talent Project
- Shandong Province Key RD Program [2020CXGC010104]
- Science, Technology and Innovation Commission of Shenzhen Municipality [JSGG20201102152200001]
We have demonstrated an efficient single-frequency Tm-doped fiber laser at 2050 nm. By employing a ring cavity scheme and a Tm/Ho-codoped fiber, we have enhanced the frequency selection capability and achieved a high single-frequency output power.
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 mu m. (C) 2022 Optica Publishing Group
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