A 10 W level 976 nm single-frequency linearly polarized laser source was demonstrated with a two-stage all-fiber amplifier configuration. The continuous-wave output power of 10.1 W was obtained from the second stage amplifier by using a 20/130 μm single-mode, polarization maintaining, 1.5 wt. % ytterbium-doped phosphate double-clad fiber. This all-fiber single-frequency laser source is very promising for watt-level deep ultraviolet laser generation via frequency quadrupling.

中文翻译：

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功率可扩展的10 W 976 nm单频线性偏振激光源

演示了具有两级全光纤放大器配置的10 W级976 nm单频线性偏振激光源。通过使用20/130μm单模，偏振保持1.5 wt.l从第二级放大器获得10.1 W的连续波输出功率。掺磷酸盐双包层纤维。这种全光纤单频激光源非常适合通过四倍频产生瓦特级深紫外激光。