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Sideband generation of transient lasing without population inversion

机译:无总体反转的瞬态激光边带生成

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摘要

We suggest a method to generate coherent short pulses by generating a frequency comb using lasing without inversion in the transient regime.We use a universal method to study the propagation of a pulse in various spectral regions through an active medium that is strongly driven on a low-frequency transition on a time scale shorter than the decoherence time. The results show gain on the sidebands at different modes can be produced even if there is no initial population inversion prepared. Besides the production of ultrashort pulses this frequency comb may have applications towards making short-wavelength or terahertz lasers.
机译:我们建议一种通过在瞬态范围内使用激光产生频率梳而不发生反转来产生相干短脉冲的方法。我们使用一种通用方法来研究脉冲在各种光谱区域中通过有源介质的传播,该介质在低压下强烈驱动-频率转换的时间尺度比退相干时间短。结果表明,即使没有准备初始种群反转,也可以在不同模式下产生边带增益。除了产生超短脉冲外,这种频率梳还可以用于制造短波长或太赫兹激光器。

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