Sheng Quan, Wang Meng, Shi Chao-Du, Tian Hao, Zhang Jun-Xiang, Liu Jun-Jie, Shi Wei, Yao Jian-Quan. High-power narrow-linewidth single-frequency pulsed fiber amplifier based on self-phase modulation suppression via sawtooth-shaped pulsesJ. Acta Physica Sinica, 2021, 70(21): 214202. DOI: 10.7498/aps.70.20210496