[6] Kikuchi N, Sasaki S. Analytical evaluation technique of self-phase modulation effect on the performance of cascaded optical amplifier systems[J]. J Lightw Technol, 1995, 13: 868-878.
[8] Chen H M, Zhu G H, Niloy K, et al. Suppression of self-pulsing behavior in erbium-doped fiber lasers with a semiconductor optical amplifier[J]. Appl Opt, 2002 41(18): 3511-3516.
[9] Ortac B, Hideura A, Chartier T, et al. Influence of cavity losses on stimulated Brillouin scattering in a self-pulsing side-pumped ytterbium-doped double-clad fiber laser[J]. Opt Commun, 2003, 215: 389-395.
[10] Rios A M, Gomes I T, Sanchez G A, et al. Self-pulsing in a double-clad ytterbium fiber laser induced by high scattering loss[J]. Opt Commun, 2008, 281: 663-667.