深饱和自由电子激光振荡器和冻结尖峰
Deep Saturated Free Electron Laser Oscillators and Frozen Spikes
摘要：
分析了自由电子激光（FEL）振荡器在深饱和区的工作特性，指出了光脉冲亚峰的形成。它们是非常稳定的配置，具有对应于相干长度的宽度。我们推测其生长的物理机制，并试图与超模式相关的自由电子激光锁模结构的识别。讨论了它们对腔内非线性谐波产生的影响以及将它们用作腔外耦合器的可能性。
英文摘要：
We analyze the behavior of Free Electron Laser (FEL) oscillators operating in the deep saturated regime and point out the formation of sub-peaks of the optical pulse. They are very stable configurations, having a width corresponding to a coherence length. We speculate on the physical mechanisms underlying their growth and attempt an identification with FEL mode locked structures associated with Super Modes. Their impact on the intra-cavity nonlinear harmonic generation is also discussed along with the possibility of exploiting them as cavity out-coupler.
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