Abstract: Within the framework of our LIDAR activity devoted to air pollution measurements, we realized the injection of a continuous carbon dioxide laser into a high power TE CO$-2$/ laser, to get the possibility of better analyze return signal response and to realize a Doppler wind velocimeter. Apart from the need of temporally smooth pulse to examine measurements result, in remote sensing it is desirable to use narrow band laser sources. The request of high spectral performances is manly based on the possibility to use heterodyne detection, on one hand, to improve the signal to noise ratio, and, on the other, to observe and analyze Doppler frequency shift in the return signal. We are engaged into implement a TE CO$-2$/ laser source by injection of a cw pulse from a low pressure CO$-2$/. Preliminary results we obtained show a smoothing of the output pulse shape and a consequent reduction in spectral band-width, revealing a single longitudinal mode operation. !7
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机译：摘要：在我们致力于大气污染测量的激光雷达活动的框架内，我们实现了向高功率TE CO $ -2 $ /激光器中注入连续二氧化碳激光器，从而有可能更好地分析返回信号响应并实现多普勒测速仪。除了需要时间上平滑的脉冲来检查测量结果之外，在遥感中，还希望使用窄带激光源。对频谱性能的要求很高，这是基于一方面使用外差检测以提高信噪比，另一方面观察并分析返回信号中的多普勒频移的可能性。我们通过注入来自低压CO $ -2 $ /的连续脉冲来实现TE CO $ -2 $ /激光源。我们获得的初步结果显示出输出脉冲形状的平滑和频谱带宽的减小，从而揭示了一个纵向模式操作。 ！7
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