已有研究发现,用分布增益非线性光纤环镜放大和压缩超短光孤子不仅能避免常规掺铒光纤放大器中由于非线性效应引起的孤子畸变,而且可克服绝热放大技术放大器长度随输入脉宽增大而指数规律增大的困难.进一步计算了弱脉冲在分布增益非线性光纤环镜中的放大和压缩过程.结果表明,对于峰值功率比基阶孤子低得多的弱脉冲输入,用分布增益非线性光纤环镜同样可实现无畸变的脉冲能量放大和脉宽压缩；经环镜放大输出的脉冲也接近基阶孤子；输入脉冲峰值功率越低,实现最佳放大所需的环镜总增益越大,高阶效应对放大结果的影响越显著.
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