强激光与粒子束, 2011, 23 (3): 666, 网络出版: 2011-04-01
管状预电离可调谐TEA CO2 激光器
Tunable TEA CO2 laser using tubulous preionizer
激光技术 TEA CO2激光器 管状预电离 高重复频率 可调谐 laser technique TEA CO2 laser tubulous preionizer high repetition rate tunable
摘要
研制了一种新型的预电离结构——管状预电离器，并将其应用于可调谐TEA CO2激光器。利用光栅选线方案，采用光栅谐振腔，实现了激光的调谐输出。在输出耦合率为50%、气压为40 kPa的条件下，10P(20),10R(20),9P(20),9R(20)四条谱线获得的最高电光转换效率，分别为9.5%，9.7%，9.8%，9.8%。实现了激光器的高重复频率可调谐输出运转，测量了上述4条谱线激光输出的脉冲能量及平均功率,在输出耦合率为50%、气压为30 kPa的条件下，重复频率最高可达190 Hz, 此时的10P(20),10R(20),9P(20),9R(20)四线的平均功率分别为322，321，340，338 W。
Abstract
Tunable transversely excited atmospheric-pressure (TEA) CO2 laser has potential applications in laser radar, laser chemistry and laser propulsion. A new type of preionizer used in tunable TEA CO2 laser was investigated. With the means of grating line selection, tunable laser output was realized by grating resonator. On the condition that the output coupling efficiency is 50% and the pressure is 40 kPa, the maximal electro-optical efficiency of 10P(20),10R(20),9P(20) and 9R(20) lines is 9.5%, 9.7%, 9.8% and 9.8%, respectively. When the gas pressure is 30 kPa and the output coupling efficiency is 50%, the repetition rate is 190 Hz of the highest value. At the same time, the average power of 10P(20),10R(20),9P(20) and 9R(20) lines is 332, 321, 340 and 338 W, respectively.
吉洪煦, 谭荣清, 刘世明, 朱玉峰, 文康, 王东蕾, 安然, 郑义军, 张阔海, 黄文武, 曾元. 管状预电离可调谐TEA CO2 激光器[J]. 强激光与粒子束, 2011, 23(3): 666. Ji Hongxu, Tan Rongqing, Liu Shiming, Zhu Yufeng, Wen Kang, Wang Donglei, An Ran, Zheng Yijun, Zhang Kuohai, Huang Wenwu, Zeng Yuan. Tunable TEA CO2 laser using tubulous preionizer[J]. High Power Laser and Particle Beams, 2011, 23(3): 666.
PDF全文
