Fu Shijie, Zhu Xiushan, Zong Jie, Norwood Robert A, Peyghambarian Nasser
Opt Express. 2021 Sep 13;29(19):30637-30643. doi: 10.1364/OE.438787.
Compact and robust high-power single-frequency laser oscillators are in great demand for some specific applications where narrow-linewidth lasers with extremely low noise are required. In this paper, we report a single-mode-diode-pumped watt-level single-frequency Yb-doped phosphate fiber laser at 1050 nm based on an all-fiber distributed Bragg reflector cavity. A maximum output power of 1.15 W with a slope efficiency of 66% was achieved with 18-mm-long 8 wt.% Yb-doped phosphate fiber. Stable, single-longitudinal-mode lasing with a spectral linewidth of 9.6 kHz and polarization extinction ratio of ∼30 dB was obtained.
紧凑且坚固的高功率单频激光振荡器在一些需要具有极低噪声的窄线宽激光器的特定应用中有着巨大需求。在本文中，我们报道了一种基于全光纤分布布拉格反射器腔的1050nm单模二极管泵浦瓦级单频掺镱磷酸盐光纤激光器。使用18毫米长、掺杂浓度为8wt.%的掺镱磷酸盐光纤，实现了1.15W的最大输出功率，斜率效率为66%。获得了稳定的单纵模激光输出，光谱线宽为9.6kHz，偏振消光比约为30dB。
