High-energy single-frequency optical pulses at 1572 nm were generated from an all-fiber MOPA system for atmospheric ${\mathrm{CO}}_2$ LIDAR system application. We report the experimental demonstration of 1.8 mJ, a peak power of 3.5 kW at the pulse repetition of 2.5 kHz, as well as 1.3 mJ, a peak power of 2.5 kW at the pulse repetition of 7.5 kHz single-frequency optical pulses at 1572 nm using single-mode large-core polarization-maintaining Er-Yb co-doped silicate glass fiber amplifiers pumped at 976 nm. To the best of our knowledge, this is the highest pulse energy of single frequency at 1572 nm from an all-fiber amplifier system.

中文翻译：

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全光纤MOPA系统产生的1572 nm处的1.8 mJ，3.5 kW单频光脉冲

通过用于大气的全光纤MOPA系统产生了1572 nm的高能单频光脉冲 ${\mathrm{一氧化碳}}_{\mathrm{2个}}$LIDAR系统的应用。我们报告了在1.52 nm的脉冲重复频率为2.5 kHz时1.8 mJ，3.5 kW的峰值功率以及在1572 nm的7.5 kHz单频率光脉冲的1.3 mJ，2.5 kW的峰值功率的实验演示使用在976 nm泵浦的单模大芯保偏Er-Yb共掺杂硅酸盐玻璃纤维放大器。据我们所知，这是全光纤放大器系统在1572 nm处单频率的最高脉冲能量。