正色散激光器中的增益导引孤子  

Gain-guided solitons in positive dispersion lasers

作　　者：林宏奂[1] 卢振华[1] 王建军[1] 张颖[1] 王凤蕊[1] 许党朋[1] 张锐[1] 李明中[1] 邓青华[1] 罗亦鸣[1] 唐军[1] 丁磊[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,绵阳621900

出　　处：《物理学报》2008年第9期5646-5650,共5页Acta Physica Sinica

基　　金：国家高技术研究发展计划(批准号:2007AA4303)资助的课题~~

摘　　要：采用非线性薛定谔方程模拟了全正色散介质激光器中实现脉冲锁模输出的动态过程,理论表明,不同于工作于净色散为负的孤子锁模激光器以及腔内具有色散延迟线净色散为正的色散管理孤子和自相似脉冲锁模激光器,在纯正色散介质构成的锁模激光器中,增益饱和和增益窄化对形成稳定的锁模脉冲起重要的作用,在两者的作用下脉冲形成增益导引孤子.采用不同的锁模方式在纯正色散光纤锁模激光器中得到了稳定的增益导引孤子锁模,实验结果与理论模拟一致.We numerically simulated the dymamics of mode locking in pure positive dipersion lasers by NLS. Different from soliton lasers operating in net negative dispersion regime or dispersion mananged soliton and similariton lasers operationg in net positive dispersion regime with disperion compensation components, gain saturation and narrowing plays an important role in pulse formation in lasers composed of pure positive dispersion medium, in which the pulses evolve to gain-guided solitons. Stable gainguided soliton was obtain in two kinds of mode locked fiber lasers operating in the positive dipersion regime, and experimental results confirmed the numerical simulation.

关 键 词：锁模 正色散 增益导引孤子 

分 类 号：TN248[电子电信—物理电子学]