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提出了一种基于色散渐减光纤环镜的光脉冲压缩方法.理论计算表明,该方法不仅能避免常规孤子效应脉冲压缩过程中由于非线性效应引起的脉座和频率啁啾,而且可克服绝热孤子压缩技术光纤长度随输入脉宽增大而指数规律增大的困难.对于峰值功率达到一定程度的输入脉冲,压缩后的输出脉冲均接近基阶孤子,且输出性能对环镜长度的选取误差不敏感,同时还具有比绝热孤子压缩技术更强的抗高阶效应能力和抗初始频率啁啾能力,表明了该方法的有效性和实用性.
An optical pulse compression method based on dispersion-decreasing fiber ring mirror is proposed.The theoretical calculation shows that this method can not only avoid the pulse train and frequency chirp caused by nonlinear effect during the pulse compression of conventional soliton effect, The soliton compression technique has the difficulty of increasing the exponential law with the increase of the input pulse width.For the input pulse whose peak power reaches a certain level, the output pulse after compression is close to the fundamental soliton and the output error Insensitive, stronger antihypertensive effect and anti-initial frequency chirp than adiabatic soliton compression technique, which shows the effectiveness and practicability of this method.