连续波氟化氢激光输出光谱特性研究
|
摘要
设计了V型折叠非稳定光学谐振腔,对不同氧化剂过量系数条件下连续波氟化氢(HF)激光输出谱线变化规律进行分析。结果表明,在合适的激光反应体系配方和光学谐振腔参数下,波长大于2.87μm的2P8和2P9等HF激光长波谱线能够有效输出。调节燃烧室反应相对氧化剂过量系数,控制参与光腔激射反应的自由氟原子量,能够在一定程度上调节HF激光输出谱线分布。激光器输出功率与增益系数密切相关,单支谱线的最高输出功率与其最大增益系数相对应,激光器最高输出功率与各支谱线增益系数之和的最大值相对应。
A V-model unstable optical resonator is designed, and the rule of the output spectrum of continuous wave hydrogen fluoride( HF) laser is discussed on the condition of different oxidant excess indexes. Spectral lines corresponding to wavelength over 2. 87 μm, such as 2 P8 and 2 P9, are obtained efficiently under appropriate reaction formula and optical resonator parameters. We can partly regulate the distribution of HF laser output spectrum by adjusting the combustor oxidant excess index and controlling the amount of free fluoride atom lasing reaction. The output power of laser is closely related to the gain coefficient. The maximal output power of a single spectral line is determined by its maximal gain coefficient, while the maximal output power of the laser depends on the maximal value of the sum of all spectral lines gain coefficients.
A V-model unstable optical resonator is designed, and the rule of the output spectrum of continuous wave hydrogen fluoride( HF) laser is discussed on the condition of different oxidant excess indexes. Spectral lines corresponding to wavelength over 2. 87 μm, such as 2 P8 and 2 P9, are obtained efficiently under appropriate reaction formula and optical resonator parameters. We can partly regulate the distribution of HF laser output spectrum by adjusting the combustor oxidant excess index and controlling the amount of free fluoride atom lasing reaction. The output power of laser is closely related to the gain coefficient. The maximal output power of a single spectral line is determined by its maximal gain coefficient, while the maximal output power of the laser depends on the maximal value of the sum of all spectral lines gain coefficients.
引文
[1]格罗斯,博特.化学激光手册[M].北京:科学出版社,1987.
[2]Wang H Y,Zhang X Z,Li Q,et al.Efficient nitrogen diluted discharge-drive continuous wave HF/DF chemical laser[J].Optics and Precision Engineering,2011,19(2):304-309.王红岩,张煊喆,李强,等.氮稀释剂高效电激励连续波HF/DF化学激光器[J].光学精密工程,2011,19(2):304-309.
[3]Rawlins W T,Oakes D B,Mulhall P A,et al.Advanced optical diagnostics for HF laser development[R].Physical Sciences INC Andover MA,2002.
[4]Zou Q J,Yuan S F,Luo W,et al.Application of spectrum measurements in working status diagnosis of chemical lasers[J].Laser&Optoelectonics Progress,2011,48(9):091401.邹前进,袁圣付,罗威,等.光谱测量在化学激光器运转状态诊断中的应用[J].激光与光电子进展,2011,48(9):091401.
[5]Yu J B,Chen X,Wang H Y,et al.Small signal gain measurement for supersonic nitrogen diluted continuous wave HF chemical laser[J].High Power Laser and Particle Beams,2011,23(10):2569-2572.于金标,陈星,王红岩,等.超音速氮稀释剂连续波HF化学激光器小信号增益测量[J].强激光与粒子束,2011,23(10):2569-2572.
[6]Luo W,Yuan S F,Zou Q J,et al.Kinetics of the spectral lines of high vibration state in DF/HF lasers[J].Journal of Infrared and Millimeter Waves,2012,31(3):239-242.罗威,袁圣付,邹前进,等.DF/HF化学激光器高振动态基频谱线机理分析[J].红外与毫米波学报,2012,31(3):239-242.
[7]Wang J,Guo J Z,Li S H,et al.Study on gain characteristic of the long wave spectral line in hydrogen fluoride laser[J].Chinese Journal of Lasers,2017,44(4):0411002.王杰,郭建增,李少华,等.氟化氢激光长波谱线增益特性研究[J].中国激光,2017,44(4):0411002.
[8]Huang R P,Sun Y Z,Sang F T,et al.Beam quality measurement for CW HF(DF)chemical laser[J].High Power Laser and Particle Beams,1993,5(1):42-44.黄瑞平,孙以珠,桑凤亭,等.连续波HF(DF)化学激光器采用非稳腔的光束质量测量[J].强激光与粒子束,1993,5(1):42-44.
[9]Liu Z J,Lu Q S,Zhao Y J.Study of evaluating beam quality of high energy lasers with unstable resonators[J].Chinese Journal of Lasers,1998,25(3):193-196.刘泽金,陆启生,赵伊君.高能非稳腔激光器光束质量评价的探讨[J].中国激光,1998,25(3):193-196.
[10]Zhu F,Huang K,Zhou S Q,et al.Laser beam quality optimization of no-chain pulsed HF laser using unstable resonator[J].Chinese Journal of Lasers,2017,44(4):0401002.朱峰,黄珂,周松青,等.基于非稳腔的非链式脉冲HF激光光束质量优化[J].中国激光,2017,44(4):0401002.
[11]Cao B L,Wu C J,Rao R Z,et al.Atmospheric attenuation of the HF and DF laser radiation[J].High Power Laser and Particle Beams,2003,15(1):17-20.曹百灵,邬承就,饶瑞中,等.HF/DF激光传输的大气衰减特性[J].强激光与粒子束,2003,15(1):17-20.
[12]Luo W,Yuan S F,Zou Q J,et al.Influence of outer cavity on emission spectrum of the HF/DF chemical laser[J].Laser&Infrared,2012,42(7):758-761.罗威,袁圣付,邹前进,等.外腔式结构对HF/DF激光器输出光谱的影响[J].激光与红外,2012,42(7):758-761.
[2]Wang H Y,Zhang X Z,Li Q,et al.Efficient nitrogen diluted discharge-drive continuous wave HF/DF chemical laser[J].Optics and Precision Engineering,2011,19(2):304-309.王红岩,张煊喆,李强,等.氮稀释剂高效电激励连续波HF/DF化学激光器[J].光学精密工程,2011,19(2):304-309.
[3]Rawlins W T,Oakes D B,Mulhall P A,et al.Advanced optical diagnostics for HF laser development[R].Physical Sciences INC Andover MA,2002.
[4]Zou Q J,Yuan S F,Luo W,et al.Application of spectrum measurements in working status diagnosis of chemical lasers[J].Laser&Optoelectonics Progress,2011,48(9):091401.邹前进,袁圣付,罗威,等.光谱测量在化学激光器运转状态诊断中的应用[J].激光与光电子进展,2011,48(9):091401.
[5]Yu J B,Chen X,Wang H Y,et al.Small signal gain measurement for supersonic nitrogen diluted continuous wave HF chemical laser[J].High Power Laser and Particle Beams,2011,23(10):2569-2572.于金标,陈星,王红岩,等.超音速氮稀释剂连续波HF化学激光器小信号增益测量[J].强激光与粒子束,2011,23(10):2569-2572.
[6]Luo W,Yuan S F,Zou Q J,et al.Kinetics of the spectral lines of high vibration state in DF/HF lasers[J].Journal of Infrared and Millimeter Waves,2012,31(3):239-242.罗威,袁圣付,邹前进,等.DF/HF化学激光器高振动态基频谱线机理分析[J].红外与毫米波学报,2012,31(3):239-242.
[7]Wang J,Guo J Z,Li S H,et al.Study on gain characteristic of the long wave spectral line in hydrogen fluoride laser[J].Chinese Journal of Lasers,2017,44(4):0411002.王杰,郭建增,李少华,等.氟化氢激光长波谱线增益特性研究[J].中国激光,2017,44(4):0411002.
[8]Huang R P,Sun Y Z,Sang F T,et al.Beam quality measurement for CW HF(DF)chemical laser[J].High Power Laser and Particle Beams,1993,5(1):42-44.黄瑞平,孙以珠,桑凤亭,等.连续波HF(DF)化学激光器采用非稳腔的光束质量测量[J].强激光与粒子束,1993,5(1):42-44.
[9]Liu Z J,Lu Q S,Zhao Y J.Study of evaluating beam quality of high energy lasers with unstable resonators[J].Chinese Journal of Lasers,1998,25(3):193-196.刘泽金,陆启生,赵伊君.高能非稳腔激光器光束质量评价的探讨[J].中国激光,1998,25(3):193-196.
[10]Zhu F,Huang K,Zhou S Q,et al.Laser beam quality optimization of no-chain pulsed HF laser using unstable resonator[J].Chinese Journal of Lasers,2017,44(4):0401002.朱峰,黄珂,周松青,等.基于非稳腔的非链式脉冲HF激光光束质量优化[J].中国激光,2017,44(4):0401002.
[11]Cao B L,Wu C J,Rao R Z,et al.Atmospheric attenuation of the HF and DF laser radiation[J].High Power Laser and Particle Beams,2003,15(1):17-20.曹百灵,邬承就,饶瑞中,等.HF/DF激光传输的大气衰减特性[J].强激光与粒子束,2003,15(1):17-20.
[12]Luo W,Yuan S F,Zou Q J,et al.Influence of outer cavity on emission spectrum of the HF/DF chemical laser[J].Laser&Infrared,2012,42(7):758-761.罗威,袁圣付,邹前进,等.外腔式结构对HF/DF激光器输出光谱的影响[J].激光与红外,2012,42(7):758-761.