| 湍流大气激光束扩展效应的研究 |
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| 引用本文： | 谭启培
,黄兴
,谭冠龙,艾勇.湍流大气激光束扩展效应的研究[J].五邑大学学报(社会科学版),1990(Z1). |
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| 作者姓名： | 谭启培 黄兴 谭冠龙 艾勇 |
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| 作者单位： | 武汉大学，湖北师范学院 副教授，研究生 |
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| 摘 要： | 本文讨论了激光扩展的机制问题,给出了短期和长期扩展光斑半径ps和PL的均方值的近似计算方法,提供了一套测量短期扩展效应的技术,进行了在静态空气、湍流空气和暖风场下光束扩展的测量,所得结果与理论值比较吻合,光束扩展谱的统计分布近似于正态分布。
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| 关 键 词： | 激光束 扩展效应 短长期束扩展 脉冲宽度—时间—幅度转换技术 统计分布 |
The Reseach of Laser Beam Spread Effects in the Turbulent Atmosphere |
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| Tan Qipei Huang Xing Tan Guanlong Ai Youg.The Reseach of Laser Beam Spread Effects in the Turbulent Atmosphere[J].Journal of Wuyi University(Social Sciences Edition),1990(Z1). |
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| Authors: | Tan Qipei Huang Xing Tan Guanlong Ai Youg |
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| Institution: | Tan Qipei Huang Xing Tan Guanlong Ai Youg |
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| Abstract: | This paper discusses the problem of the mechanism for laseer beam spread. An approximate computing method about the mean-square value of spot radius and for short time and long time laser beam spread is given. A new measurement technique for the short time beam spread is supplied. The statistical distribution curves of beam spread , under the condition of static air turbulent air and hot wind field have been tested. The results obtained fit in with the theory value. The statistical distribution curves of beam spread spectra are normal distribution approximately. |
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| Keywords: | Laser Beam Spread Effects Short time and Long-time Laser Beam Spreads Pulse width-Time-Amplitude Conversion Technique Statistical Distribution |
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