Affiliation:
1. Tianjin University
2. Shenzhen University
3. HFB Photonics Co. Ltd.
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.
Funder
National Natural Science Foundation of China
Major Scientific and Technological Innovation Projects of Key R&D Plans in Shandong Province
The Shandong Province Taishan Industry Leading Talent Project
Shandong Province Key R&D Program
Science, Technology and Innovation Commission of Shenzhen Municipality
Subject
Atomic and Molecular Physics, and Optics
Cited by
15 articles.
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