棱镜色散腔XeF(C-A)蓝绿激光线宽压缩
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摘要
XeF(C-A)蓝绿激光的增益系数较低,仅为0.003cm-1,要获得高能量窄线宽激光输出有一定难度。利用色散元件棱镜开展了高单脉冲能量窄线宽激光输出实验研究,结果表明:采用凹面输出镜的情况下,激光线宽可以压缩到约2.5nm,激光输出能量最大为3.47J;采用平面输出镜,激光线宽压缩到约0.7nm,激光输出能量最大为2.93J,激光光谱调谐范围最大可达到60nm,在460～520nm之间。
As the gain coefficient of XeF(C-A) blue-green lasers is low,it is difficult to obtain a laser pulse with both high energy and narrow spectrum.In this paper,a dispersive prism is used in the resonator to compress the laser spectrum and to get high laser pulse energy.The experimental results show that,using a concave output mirror,the laser spectrum can be compressed to about 2.5 nm and the maximal laser energy is 3.47 J.As a comparison,using a plane output mirror,the laser spectrum can be compressed to about 0.7 nm with the laser pulse energy of 2.93 J.In the expriment,the laser spectrum can be tunable between 460 nm and 520 nm and the tunable width is about 60 nm.
As the gain coefficient of XeF(C-A) blue-green lasers is low,it is difficult to obtain a laser pulse with both high energy and narrow spectrum.In this paper,a dispersive prism is used in the resonator to compress the laser spectrum and to get high laser pulse energy.The experimental results show that,using a concave output mirror,the laser spectrum can be compressed to about 2.5 nm and the maximal laser energy is 3.47 J.As a comparison,using a plane output mirror,the laser spectrum can be compressed to about 0.7 nm with the laser pulse energy of 2.93 J.In the expriment,the laser spectrum can be tunable between 460 nm and 520 nm and the tunable width is about 60 nm.
引文
[1]于力,刘晶儒,马连英,等.双向光泵浦XeF(C-A)激光[J].强激光与粒子束,2005,17(12):1765-1768.(Yu Li,Liu Jinru,Ma Lianying,etal.XeF(C-A)laser enhanced by two pump sources.High Power Laser and Particle Beams,2005,17(12):1765-1768)
[2]李红霞,楼祺洪,董景星,等.准分子激光线宽压缩方法的研究[J].光学与光电技术,2004,2(4):44-47.(Li Hongxia Lou Qihong,DongJingxing,et al.Research on spectral-narrowing of excimer lasers.Optics and Optoelectronic Technology,2004,2(4):44-47)
[3]张海波,楼祺洪,周军,等.ArF准分子激光器线宽压缩技术[J].激光与光电子学进展,2009,12:46-51.(Zhang Haibo,Lou Qihong,ZhouJun,et al.ArF excimer laser line narrowing technique.Laser and Optoelectronics Progress,2009,12:46-51)
[4]Gower M C,Williams C,Apte P,et al.Efficient line narrowing and wavelength stabilization of excimer lasers[C]//Proc of SPIE.1992,1835:98-108.
[5]Knecht B A,Fraser R D,Wheeler D J,et al.Optical pumping of the XeF(C-A)and iodine 1.351μm lasers by a compact surface dischargesystem[J].Optical Engineering,2003,42(12):3612-3621.
[6]Mikheev L D,Stavrovskii D B,Zuev V S.Photodissociation XeF laser operating in the visible and UV regions[J].Journal of Russian LaserResearch,1995,16(5):427-475.
[7]于力,刘晶儒,马连英,等.焦耳量级光抽运XeF蓝绿激光器[J].光学学报,2005,25(7):930-934.(Yu Li,Liu Jinru,Ma Lianying,et al.Joule level XeF laser operating in the bule-green region.Acta Optica Sinica,2005,25(7):930-934)
[8]于力,刘晶儒,马连英,等.十焦耳级重复频率光抽运XeF(C-A)激光器[J].中国激光,2006,33(s0):83-85.(Yu Li,Liu Jinru,Ma Lianying,et al.10Jlevel of optically pumping XeF(C-A)laser operating on repetition mode.China Journal of Lasers,2006,33(s0):83-85)
[9]朱峰,于力,安晓霞,等.XeF(C-A)蓝绿激光线宽压缩技术[J].强激光与粒子束,2010,22(11):2588-2592.(Zhu Feng,Yu Li,An Xiaoxia,et al.Spectral-narrowing of XeF(C-A)blue-green laser.High Power Laser and Particle Beams,2010,22(11):2588-2592)
[10]Borvn M,Wolf E.Principles of optics[M].7th ed.England:Cambrige University Press,1999.
[2]李红霞,楼祺洪,董景星,等.准分子激光线宽压缩方法的研究[J].光学与光电技术,2004,2(4):44-47.(Li Hongxia Lou Qihong,DongJingxing,et al.Research on spectral-narrowing of excimer lasers.Optics and Optoelectronic Technology,2004,2(4):44-47)
[3]张海波,楼祺洪,周军,等.ArF准分子激光器线宽压缩技术[J].激光与光电子学进展,2009,12:46-51.(Zhang Haibo,Lou Qihong,ZhouJun,et al.ArF excimer laser line narrowing technique.Laser and Optoelectronics Progress,2009,12:46-51)
[4]Gower M C,Williams C,Apte P,et al.Efficient line narrowing and wavelength stabilization of excimer lasers[C]//Proc of SPIE.1992,1835:98-108.
[5]Knecht B A,Fraser R D,Wheeler D J,et al.Optical pumping of the XeF(C-A)and iodine 1.351μm lasers by a compact surface dischargesystem[J].Optical Engineering,2003,42(12):3612-3621.
[6]Mikheev L D,Stavrovskii D B,Zuev V S.Photodissociation XeF laser operating in the visible and UV regions[J].Journal of Russian LaserResearch,1995,16(5):427-475.
[7]于力,刘晶儒,马连英,等.焦耳量级光抽运XeF蓝绿激光器[J].光学学报,2005,25(7):930-934.(Yu Li,Liu Jinru,Ma Lianying,et al.Joule level XeF laser operating in the bule-green region.Acta Optica Sinica,2005,25(7):930-934)
[8]于力,刘晶儒,马连英,等.十焦耳级重复频率光抽运XeF(C-A)激光器[J].中国激光,2006,33(s0):83-85.(Yu Li,Liu Jinru,Ma Lianying,et al.10Jlevel of optically pumping XeF(C-A)laser operating on repetition mode.China Journal of Lasers,2006,33(s0):83-85)
[9]朱峰,于力,安晓霞,等.XeF(C-A)蓝绿激光线宽压缩技术[J].强激光与粒子束,2010,22(11):2588-2592.(Zhu Feng,Yu Li,An Xiaoxia,et al.Spectral-narrowing of XeF(C-A)blue-green laser.High Power Laser and Particle Beams,2010,22(11):2588-2592)
[10]Borvn M,Wolf E.Principles of optics[M].7th ed.England:Cambrige University Press,1999.