双平行平板分光特性的数值模拟与分析

分析了双平行平板的分光特性,并提出了优化其分光特性的方法。平行放置的平行平板可将入射光束同时分为多个峰值功率密度不同的光束出射,应用电荷耦合器件(CCD)相机接收出射光斑,出射光斑的峰值功率密度差异(DMPF)要保证小。分析了平行平板板间距和光束入射角对出射光斑的峰值功率密度差异的影响,结果表明,合理选取板间距和入射角可使光斑的峰值功率密度差异减小。当平板膜特性和入射激光中心波长确定时,最优板间距与光束的瑞利长度呈递增关系,最优入射角保持稳定,相应条件下的光斑峰值功率密度差异随瑞利长度的变化有轻微浮动。

Abstract

Spliting performance of two parallel plates is analyzed and a design method is presented to optimize their spliting performance. Two parallel plates parallel to each other split one incident laser beam into multiple beams which are detected by a CCD camera. Because of the use of CCD camera,difference of maximum power density between received laser faculae (DMPF) should be made as little as possible. Effect of distance between plates and incident angle on difference of laser faculae is analyzed. And the calculation results show that reasonable selection of distance between plates and incident angle can minimize DMPF. The optimum distance between plates increases as Rayleigh length of laser beam increases while the optimum incident angle keeps stable under the condition of fixed coated film and fixed central wavelength of laser beam. And DMPF under corresponding optimum conditions fluctuates as Rayleigh length increases.

参考文献

[1] A. E. Siegman. How to (Maybe) measure laser beam quality[C]. OSA Annual Meeting,1997

[2] . Caprara,G. C. Reali. Time-resolved M2 of nanosecond pulses from a Q-switched variable-reflectivity-mirror Nd:YAG laser[J]. Opt. Lett., 1992, 17(6): 414-416.

[3] ISO 11146-1:2005

[4] . A. Ruff,A. E. Siegman. Single-pulse laser beam quality measurements using a CCD camera system[J]. Appl. Opt., 1992, 31(24): 4907-4909.

[5] . W. Lambert,R. Cortes-Martinez,A. J. Waddie et al.. Compact optical system for pulse-to-pulse laser beam quality measurement and applications in laser machining[J]. Appl. Opt., 2004, 43(26): 5037-5046.

[6] 房滔,叶訢,王志敏等. 一种基于衍射光栅光束质量M2因子的实时检测技术[J]. 中国激光,2006,33(5):650-654

Fang Tao,Ye Xin,Wang Zhimin et al.. Real-time measurement of beam quality factor M2 based on diffraction gratings[J]. Chinese J. Laser,2006,33(5):650-654

[7] 耿义峰,许晓军,习锋杰. 一种基于散焦光栅的光束质量M2因子实时测量技术[J]. 中国激光,2008,35(s1):98-100

Geng Yifeng,Xu Xiaojun,Xi Fengjie. Real-time measurement of beam quality factor M2 based on defocus gratings[J]. Chinese J. Laser,2008,35(s1):98-100

[8] 于永爱,张玲玲,唐前进等. 激光束质量实时测量技术[J]. 中国激光,2007,34(2):255-258

Yu Yong′ai,Zhang Lingling,Tang Qianjin et al.. Real-time laser beam quality measurement technique[J]. Chinese J. Laser,2007,34(2):255-258

[9] 高雪松,高春清,高明伟等. 高精度激光参数测量系统中衰减系统的研究与评价[J]. 强激光与粒子束,2006,18(2):189-192

Gao Xuesong,Gao Chunqing,Gao Mingwei et al.. Investigation and evaluation of cuneiform prism and neutral glass slics used as laser attenuator[J]. High Power Laser and Particle Beams,2006,18(2):189-192

[10] 周炳琨,高以智,陈倜嵘等. 激光原理[M]. 北京:国防工业出版社,2004. 49-64

Zhou Bingkun,Gao Yizhi,Chen Tirong et al.. Principle of Laser[M]. Beijing:National Defense Industry Press,2004. 49-64

[11] 石顺祥,张海兴,刘劲松等. 物理光学与应用光学[M]. 西安:西安电子科技大学出版社,2000. 72-82

Shi Shunxiang,Zhang Haixing,Liu Jinsong et al.. Physical Optics and Applied Optics[M]. Xi′an:Xidian University Press,2000. 72-82

[12] 曹一磊,高春清. 基于面阵CCD的激光光束参数测量系统精度分析[J]. 光学技术,2004,30(5):583-586

Cao Yilei,Gao Chunqing. Analysis on the accuracy of beam parameter measurement by using CCD array[J]. Optcial Technique,2004,30(5):583-586

杨静蕊, 侯霞. 双平行平板分光特性的数值模拟与分析[J]. 中国激光, 2010, 37(4): 923. Yang Jingrui, Hou Xia. Numerical Simulation and Analysis on Beam Spliting Performance of Two Parallel Plates[J]. Chinese Journal of Lasers, 2010, 37(4): 923.

双平行平板分光特性的数值模拟与分析

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