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中国物理学会期刊

脉冲主被动锁模固体激光器的理论计算(Ⅱ)——计算机模拟

CSTR: 32037.14.aps.34.611

THEORETICAL CALCULATION OF PULSED ACTIVE-PASSIVE MODE-LOCKED SOLID-STATE LASERS (Ⅱ)——COMPUTER SIMULATION

CSTR: 32037.14.aps.34.611
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  • 本文用文献提出的理论模型对脉冲主被动锁模钕玻璃和Nd:YAG激光器作了计算机模拟。得到了主被动锁模激光器的锁模阈值、输出稳定性、脉冲宽度、脉冲不对称度等特性对调制器的调制深度、失调以及可饱和染料的浓度、弛豫时间的依赖关系。理论计算结果与实验相比定性地符合得很好,由此解释了若干实验现象,并使我们更好地理解主被动锁模的物理过程。

     

    Computer simulations are carried out with the theoretical model presented in the previous paper for pulsed active-passive mode-locked Nd-glass and Nd : YAG lasers. The dependences of some characters of active-passive mode-locked lasers, such as mode-locking threshold, output stability, pulse width, pulse asymmetry, on modulation depth and detuning of the active modulator, concentration and relaxation time of the satura-ble dye, are given by the simulation calculations. The theoretical results are qualitatively in good agreement with experiments. Some experimental observations are explained. Thereby the physical processes involved in active-passive mode-locking are understood more deeply.

     

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