%0 Journal Article
%T Experimental Study of Beam Quality Measurement for High-energy Laser<br>高能CO2激光器光束质量测量实验研究
%A WANG Si-Wen
%A <br>王思雯
%J 红外
%D 2012
%I 
%X High-energy lasers are widely used in the fields of science, industry and military. Because of the influence of atmosphere on the transmission of a laser, the investigation of far-field beam quality of a high-power laser is always a problem. To obtain the optical intensity distribution of a 1.4 kW pulsed TEA CO2 laser at the distance of 500 m, a relative measurement method combined with absolute measurement is proposed. The measurement data are discussed and analyzed. The experimental result shows that the maximum power density on the target is 1.65 W/cm2 and the divergence angle in the cross direction is up to 0.96 mrad. The result is valuable to the optimization design of laser systems.
%K high-energy laser
%K optical quality
%K divergence angle
%K power density<br>高能激光器
%K 光束质量
%K 发散角
%K 功率密度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=3723000AE493FCE650601982177048B1&aid=748879E4497F3C2E83EA8457D3C1A4AB&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=708DD6B15D2464E8&sid=DB817633AA4F79B9&eid=771469D9D58C34FF&journal_id=1672-8785&journal_name=红外&referenced_num=0&reference_num=0