不同背压条件下HF激光器出光实验

Lasing Experiments of HF Laser in Different Background Pressure

为了研究HF化学激光器的背压对激光器输出性能的影响,同时也为即将开展的基区引射式HF化学激光器实验提供参考数据,针对某一特定结构的HF激光器,通过改变激光器背压进行出光实验,得到了不同背压条件下的输出功率和激光光斑。结果显示,该激光器形成有效激射的背压上限为4kPa,同时,扩散混合对腔压的依赖非常严重,相比之下,射流混合在较高的背压条件下仍然能够形成激射。

In order to study the effect of background pressure on the output performance of HF laser,and to provide referenced data for the ＂Base-ejecting＂ HF chemical laser,a series of experiments were conducted with different background pressure for a certain HF laser.From them,the output power and faculae were obtained.The results reveal that,the upper limit of background pressure for lasing is 4 kPa.In addition,the dependence of lasing with diffusional mixing on the cavity pressure is deep,on the other hand,lasing will be generated in high background pressure with injection mixing.