Multistability and hysteresis phenomena in passively mode-locked fiber lasers
Multistability and hysteresis phenomena in passively mode-locked fiber lasers
复制标题
DOI：
10.1103/physreva.71.053809
复制
发表时间：
2005-05-01
影响因子：
2.9
通讯作者：
Sanchez, F
中科院分区：
文献类型：
--
作者：
Komarov, A;Leblond, H;Sanchez, F
理论上研究了一种被动模式锁定的纤维激光器。使用非线性极化技术实现模式锁定。我们考虑在正常分散体状态下运行的ytterbium掺杂纤维激光器的实际情况。明确考虑了相板的效果。所得模型将光学KERR非线性，相板和偏振器以及一个部分差分方程的一个迭代方程减少到一个迭代方程，以获得增益和分散。数值模拟使我们能够描述在被动模式锁定的纤维激光器中观察到的几个特征，例如模式锁和连续状态，多重脉冲行为，滞后现象之间的双重性。还报道了脉冲数量随泵浦功率的函数的动力学。泵功率磁滞已被证明。
A passively mode-locked fiber laser is theoretically investigated. The mode locking is achieved using the nonlinear polarization technique. We consider the practical case of the ytterbium-doped fiber laser operating in the normal dispersion regime. The effect of the phase plates is explicitly taken into account. The resulting model reduces to one iterative equation for the optical Kerr nonlinearity, the phase plates and the polarizer, and one partial differential equation for the gain and the dispersion. Numerical simulations allow us to describe several features observed in passively mode-locked fiber lasers such as bistability between the mode lock and the continuous regime, multiple pulse behavior, hysteresis phenomena. The dynamics of the number of pulses as a function of the pumping power is also reported. Pump power hysteresis is demonstrated.