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The Influence of Dispersion on Output Pulse of Passively Mode-locking Femtosecond Solid State Lasers
Author(s): 
Pages: 400-403
Year: Issue:  6
Journal: LASER & INFRARED

Keyword:  飞秒脉冲固体激光器群时延色散分步傅利叶方法自相位调制脉宽;
Abstract: 文中采用饱和吸收体的快饱和模型,使用分步傅利叶方法对描述固体激光器的Haus主方程进行了数值求解,讨论了色散和自相位调制对脉冲形成的影响.当激光器达到稳定状态时,输出脉冲近似为变换极限的双曲正割脉冲,时间带宽积在0.315附近.计算结果表明,随着群时延色散绝对值的降低,输出脉宽近线性减小,此数值结论与已有实验结果定性一致.
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