Zhang Xiao, Song Yanrong
Appl Opt. 2014 May 10;53(14):2998-3003. doi: 10.1364/AO.53.002998.
We designed a new kind of mode-locked fiber laser based on fiber arrays, where the central core is doped. A theoretical model is given for an all-fiber self-starting mode-locked laser based on this kind of doped fiber array. Two different kinds of fiber lasers with negative dispersion and positive dispersion are simulated and discussed. The stable mode-locked pulses are generated from initial noise conditions by the realistic parameters. The process of self-starting mode-locking multipulse transition and the relationship between the energy of the central core and the propagation distance of the pulses are discussed. Finally, we analyze the difference between the averaged mode-locked laser and the discrete mode-locked laser.
我们设计了一种基于光纤阵列的新型锁模光纤激光器，其中心纤芯为掺杂光纤。给出了基于这种掺杂光纤阵列的全光纤自启动锁模激光器的理论模型。对两种具有负色散和正色散的不同类型光纤激光器进行了模拟和讨论。通过实际参数从初始噪声条件下产生了稳定的锁模脉冲。讨论了自启动锁模多脉冲跃迁过程以及中心纤芯能量与脉冲传播距离之间的关系。最后，我们分析了平均锁模激光器和离散锁模激光器之间的差异。
