摘要
近距离测量外腔式结构HF/DF激光器的输出光谱时,观察到部分HF激光谱线不合常规地强度较弱甚至消失。利用MODTRAN软件对光谱中各支谱线的大气传输透过率进行了计算,发现这些HF激光谱线的大气传输性能较差。经分析,这些大气传输性能较差谱线强度较弱甚至消失的主要原因是腔内大气传输损耗,腔内大气传输损耗应计入总腔内损耗,对HF激光器输出光谱有很大影响。
The emission spectrums of the outer cavity HF/DF chemical lasers were measured.It is found that some spectral lines of HF laser are very week or even disappear unusually.The total atmospheric transmittances of all the spectral lines that have appeared in the spectrums were calculated by MODTRAN software.It is found that those unusual lines of HF laser have poor atmospheric transmission performances.The week intensities or even disappearing of them caused by atmospheric transmission loss in the resonator,which should be counted into the total loss in the resonator.The atmospheric transmission loss has distinct influence on the emission spectrum of HF laser.
出处
《激光与红外》
CAS
CSCD
北大核心
2012年第7期758-761,共4页
Laser & Infrared
基金
国家自然科学基金(No.10974255/A040403)资助
关键词
化学激光器
大气传输
谱线选择与控制
外腔式
chemical laser
emission spectrum
atmospheric transmittance
outer cavity
