Zhen ZHANG, Dian DUAN, Yujun CHEN, Shanshan WEI, Jindong MA, Bo YAO, Qinghe MAO. Picosecond pulse fiber front end based on narrow⁃band dissipative soliton Figure⁃9 fiber oscillator and single⁃stage single⁃mode fiber amplifier[J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 476