射频激励纵流CO激光器实验研究  

Experimental Studies of RF Excited Longitudinal Flow CO Laser

作　　者：于清旭[1] 王成有 宋昌烈 林钧岫 

机构地区：[1]大连理工大学物理系

出　　处：《光电子．激光》1998年第4期285-287,共3页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金;辽宁省自然科学基金

摘　　要：将射频放电激励应用于纵流ＣＯ激光器，在工作气体流速低于１３ｍ／ｓ，有效增益介质长度为８０ｃｍ，采用液氮冷却的条件下得到最大激光输出功率６７Ｗ，最高转换效率２８％。放电管和电容耦合式电极浸没在液氮中，实验证明液氮对于射频辐射没有明显吸收，实验对激光输出功率与射频注入功率的关系及工作气体温度对输出功率的影响作了测量。这项工作为下一步大功率射频激励纵流ＣＯ激光器的研究提供了许多有用的实验数据。Applying radio frequency excitation to a longitudinal flow CO laser,a maximum output power of 66 watts and conversion efficiency of 28% have been achieved with the gas flow rate of 13m/s and the effective gain length of 80 cm.Both discharge tube and electrodes are submerged in liquid nitrogen.The experimental result has shown that the LN 2 layer between electrodes and discharge tube does not absorb RF radiation.The dependence of laser output power on input RF power and on laser gas temperature has been obtained.From this work we have got many useful experimental results for the further development of high power RF excited longitudinal flow CO laser.

关 键 词：射频激励 纵向流动 一氧化碳激光器 

分 类 号：TN248.22[电子电信—物理电子学]