中国激光, 2013, 40 (6): 0602002, 网络出版: 2013-05-30
双饱和吸收镜被动锁模脉冲动力学过程分析
Analysis of Pulse Dynamics for Passive Mode Locking with Dual Semiconductor Saturable Absorber Mirrors
激光器 被动锁模 半导体可饱和吸收镜 脉冲动力学 Haus主方程 全固态激光器 lasers passive mode locking semiconductor saturable absorber mirror pulse dynamics Haus master equation all solid state lasers
摘要
利用两片半导体可饱和吸收镜(SESAM)实现了稳定的被动锁模激光运转，获得了比单SESAM连续波锁模脉宽更窄、长时间运转稳定性更高的皮秒脉冲。理论上利用分步傅里叶变换法数值求解描述饱和吸收体被动锁模动力学过程的Haus主方程，模拟了双SESAM被动锁模的脉冲演化过程，分析了锁模激光脉冲形成过程与双SESAM可饱和吸收损耗系数q1和q2的关系,并计算得到了锁模脉冲宽度和锁模稳定区域等参数。计算结果与实验结果较为吻合。
Abstract
In this paper, dual semiconductor saturable absorber mirrors (SESAMs) are utilized to realize stable passively mode locked laser operation, and shorter and more stable picosecond pulses in long time are obtained compared with the case with single-SESAM mode locking. In theory, Haus master equation describing the mode locking dynamics of saturable absorber is numerically solved with split-step-Fourier transform method. The detailed dynamic pulse evolution process with dual-SESAM mode locking is simulated. The relationship between the pulse formation and two SESAM saturable absorption loss parameters q1 and q2 are analyzed. Also the mode locked pulse widths and stability region are calculated, and the numerical results are in agreement with the experimental results well.
韩克祯, 侯佳, 杨克建, 张百涛, 何京良. 双饱和吸收镜被动锁模脉冲动力学过程分析[J]. 中国激光, 2013, 40(6): 0602002. Han Kezhen, Hou Jia, Yang Kejian, Zhang Baitao, He Jingliang. Analysis of Pulse Dynamics for Passive Mode Locking with Dual Semiconductor Saturable Absorber Mirrors[J]. Chinese Journal of Lasers, 2013, 40(6): 0602002.
PDF全文
