[1] Nicholson J W, Desantolo A, Yan M, et al. High energy, 1572.3 nm pulses for CO₂ LIDAR from a polarization-maintaining, very-large-mode-area, Er-doped fiber amplifier[J]. Optics Express, 24, 19961-19968(2016).

[2] Shijie Fu, Wei Shi, Yan Feng, et al. Review of recent progress on single-frequency fiber lasers[J]. Journal of the Optical Society of America B, 34, A49-A62(2017).

[3] Ma P, Pu Z, Ma Y, et al. Coherent polarization beam combining of eight fiber lasers using single-frequency dithering technique[J]. Applied Physics B, 109, 269-275(2012).

[4] Zhi Dong, Ma Yanxing, Ma Pengfei, et al. Efficient coherent beam combining of fiber laser array through km-scale turbulent atmosphere[J]. Infrared and Laser Engineering, 48, 1005007(2019).

[5] Cheng Xue, Wang Jianli, Liu Changhua. Beam combining of high energy fibre lasers[J]. Infrared and Laser Engineering, 47, 0103011(2018).

[6] Du J J, Li W F, Li G, et al. Intensity noise suppression of light field by optoelectronic feedback[J]. Optik International Journal for Light & Electron Optics, 124, 3443-3445(2013).

[7] [7] Numata K, Yu A W, Camp J B, et al. Laser system development f gravitationalwave interferometry in space[C]Proc of SPIE, 2018, 10511: 105111D.

[8] Scott R P, Langrock C, Kolner B H. High-dynamic-range laser amplitude and phase noise measurement techniques[J]. IEEE Journal of Selected Topics in Quantum Electronics, 7, 641-655(2002).

[9] Horak P, Voo N Y, Ibsen M, et al. Pump-noise-induced linewidth contributions in distributed feedback fiber lasers[J]. IEEE Photonics Technology Letters, 18, 998-1000(2006).

[10] Foster S B, Tikhomirov A E. Pump-noise contribution to frequency noise and linewidth of distributed-feedback fiber lasers[J]. IEEE Journal of Quantum Electronics, 46, 734-741(2010).

[11] Zhao Q, Zhang Y, Wei L, et al. Frequency noise of distributed Bragg reflector single-frequency fiber laser[J]. Optics Express, 25, 12601-12610(2017).

[12] Wang Zhiyuan, Chen Chao, Shan Xiaonan, et al. Simulation of noise characteristics of fiber grating external cavity lasers[J]. Laser & Optoelectronics Progress, 54, 011401(2017).

[13] Ma L, Hu Z, Liang X, et al. Relaxation oscillation in Er³⁺-doped and Yb³⁺/Er³⁺ co-doped fiber grating lasers[J]. Applied Optics, 49, 1979-1985(2010).

[14] Li C, Xu S H, Yang C S, et al. Frequency noise of high-gain phosphate fiber single-frequency laser[J]. Laser Physics, 23, 45107(2013).

[15] Li Y, Fu Z, Zhu L, et al. Laser frequency noise measurement using an envelope-ratio method based on a delayed self-heterodyne interferometer[J]. Optics Communications, 435, 244-250(2018).

[16] Mercer L B. 1/f frequency noise effects on self-heterodyne linewidth measurements[J]. Journal of Lightwave Technology, 9, 485-493(1991).

[17] Tao X, Li J, Zhang H Q, et al. Integrable aspects and applications of a generalized inhomogeneous N-coupled nonlinear Schrdinger system in plasmas and optical fibers via symbolic computation[J]. Physics Letters A, 372, 1990-2001(2008).

[18] Ronnekleiv E. Frequency and intensity noise of single frequency fiber Bragg grating lasers[J]. Optical Fiber Technology, 7, 206-235(2001).

[19] Lee W, Geng J, Jiang S, et al. 1.8 mJ, 3.5 kW single-frequency optical pulses at 1572 nm generated from an all-fiber MOPA system[J]. Optics Letters, 43, 2264-2267(2018).

[20] Yue W J, Wang Y X, Xiong C D, et al. Intensity noise of erbium-doped fiber laser based on full quantum theory[J]. Josa B, 30, 275-281(2013).