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首页> 外文期刊>Quantum electronics >Effect of inhomogeneities of an active medium on the divergence of radiation from a long-pulse electric-discharge XeCl laser
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Effect of inhomogeneities of an active medium on the divergence of radiation from a long-pulse electric-discharge XeCl laser

机译:活性介质的不均匀性对长脉冲放电XeCl激光辐射散度的影响

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摘要

The effect of optical inhomogeneities of the active medium of an electric-discharge XeCl laser excited by 300-ns pulses on the divergence of amplified radiation is experimentally studied. The possibility of obtaining the diffraction-limited divergence of radiation at the output of the amplifier is shown. Under our conditions, for the pump power density exceeding 400 kW cm~(-3), the radiation divergence in mainly determined by the nonuniformity of the gain profile of the active medium that appears at a certain stage of the discharge burning. This property of the active medium is caused by the development of macro- and microinhomogeneities of the discharge current.
机译:实验研究了被300 ns脉冲激发的XeCl放电激光的活性介质的光学不均匀性对放大辐射的发散的影响。示出了在放大器的输出处获得辐射的衍射极限发散的可能性。在我们的条件下,对于超过400 kW cm〜(-3)的泵功率密度,辐射发散主要取决于在放电燃烧的某个阶段出现的活性介质的增益分布的不均匀性。活性介质的这种特性是由放电电流的宏观和微观不均匀性引起的。

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