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首页> 外文会议>RIAO/OPTILAS 2004 >Operational characteristics of different electrode systems in fast-transverse-flow CO_2 lasers
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Operational characteristics of different electrode systems in fast-transverse-flow CO_2 lasers

机译：快速横流CO_2激光器中不同电极系统的操作特性

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Time-consuming, trial and error methods have usually been key tools in the design and search of optimum performance of the electrodes in fast-transverse-flow CO_2 lasers. These tests sought a large, uniformly pumped volume and high small-signal gain. The later is determined by a complex interaction between the electron density, the flow speed and the electron generation and recombination processes that have not been taken into account in previous reports. In order to overcome these problems we have developed a simple analytical model that includes the above mentioned processes. The results enabled us to evaluate the performance of several electrode systems using data obtained in our laboratory and from other authors' reports. The first experiments were carried out with an already tested electrode set; afterwards we developed a new electrode profile that provided an expanded, uniformly pumped volume and higher small-signal gain. The predictions of the model were verified through the measurement of the spatial gain distribution.
机译：费时，反复试验的方法通常是快速横向流动CO_2激光器中电极设计和搜索最佳性能的关键工具。这些测试寻求大而均匀的泵浦量和高的小信号增益。后者取决于电子密度，流速和电子生成与复合过程之间的复杂相互作用，而先前的报告中并未考虑到这一点。为了克服这些问题，我们开发了一个简单的分析模型，其中包括上述过程。结果使我们能够使用在我们实验室中以及从其他作者的报告中获得的数据来评估几种电极系统的性能。第一次实验是在已经测试过的电极组上进行的；之后，我们开发了一种新的电极轮廓，该电极轮廓提供了扩大的均匀泵浦体积和更高的小信号增益。通过测量空间增益分布来验证模型的预测。

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