Simulation Experiment of Using Multiple Partially Coherent Beams to Limit Laser Intensity Scintillation Effect

WANG Rui

doi:10.3788/fgxb20143507.0835

您当前的位置：

首页 >

文章列表页 >

Simulation Experiment of Using Multiple Partially Coherent Beams to Limit Laser Intensity Scintillation Effect

更新时间：2020-08-12

- Simulation Experiment of Using Multiple Partially Coherent Beams to Limit Laser Intensity Scintillation Effect
- Chinese Journal of Luminescence Vol. 35, Issue 7, Pages: 835-839(2014)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143507.0835
  CLC： TP394.1;TH691.9
- Received：25 February 2014，
  
  Revised：24 May 2014，
  
  Published：03 July 2014
- 稿件说明：
移动端阅览
王锐,. 多束部分相干光抑制光强闪烁效应的仿真实验研究[J]. 发光学报, 2014,35(7): 835-839

WANG Rui,. Simulation Experiment of Using Multiple Partially Coherent Beams to Limit Laser Intensity Scintillation Effect[J]. Chinese Journal of Luminescence, 2014,35(7): 835-839
王锐,. 多束部分相干光抑制光强闪烁效应的仿真实验研究[J]. 发光学报, 2014,35(7): 835-839 DOI： 10.3788/fgxb20143507.0835.

WANG Rui,. Simulation Experiment of Using Multiple Partially Coherent Beams to Limit Laser Intensity Scintillation Effect[J]. Chinese Journal of Luminescence, 2014,35(7): 835-839 DOI： 10.3788/fgxb20143507.0835.

摘要

为了有效抑制激光大气传输过程中引起的闪烁效应，本文围绕照明光束相干性与闪烁指数关系展开研究。首先，明确闪烁效应产生机理，建立与光束相干性相关的数学模型。然后，采用偏振分光元件将出射激光分为4束，并破坏其相干性。在此基础上，以随机相位屏为核心元件构建大气湍流仿真实验装置，评估不同光束相干性条件下的远场光斑闪烁指数。实验结果表明，4束光照明的光斑闪烁指数比单光束照明降低了75%。理论分析及实验结果均证明了多束部分相干光在抑制光强闪烁效应方面的有效性。

Abstract

In order to restrain the scintillation effect in the course of laser transmitting through the atmosphere

the relation between the laser coherence and the scintillation index was researched. First

the mathematic model correlating with laser coherence was established based on the generation mechanism of scintillation effect. Then

the laser was divided into four beams

and the coherence was destroyed. On this basis

the atmosphere turbulence emulation experiment device was made using the random phase screen as core element

and the far field spot scintillation index with different laser coherence was evaluated. Experimental results indicate that the scintillation index with four beams reduce about 75% in comparison with single beam. So the availability of multiple partially coherent beams limiting laser intensity scintillation effect has been approved by the result of theory analyzing and experiment.

关键词

Keywords

references

Wang R, Wang T F, Sun T. Simulation model of laser atmospheric transmission characteristics using arbitrary thickness random phase screen [J]. Chin. J. Lasers (中国激光), 2013, 40(8):115-121 (in Chinese).

Gao M, Wu Z S. Experiments of effect of beam spreading of far-field on aiming deviation [J]. Opt. Precision Eng.(光学精密工程), 2010, 18(3):602-608 (in Chinese).

Leader J C. Atmospheric propagation of partially coherent radiation [J]. J. Opt. Soc. Am., 1978, 68:175-185.

Ponomarenko A S, Greffet J J, Wolf E. The diffusion of partially coherent beams in turbulent media [J]. Opt. Commun., 2002, 208:1-8.

Fang Y C, Guo L H, Li Y, et al. Jamming effectiveness analysis of the weather vane-type laser-guided bombs by laser [J]. Chin. J. Lumin.(发光学报), 2013, 34(5):656-664 (in Chinese).

Andrews L C, Phillips R L. Laser Beam Propagation Through Random Media [M]. Washington: SPIE Optical Engineering Press, 1998.

Korotkova O, Andrews L C. Speckle propagation through atmospheric turbulence: Effects of a random phase screen at the source [J]. SPIE, 2002, 4821:98-109.

Andrews L C, Phillips R L. Laser beam propagation through random media [J]. SPIE, 2005, 5124:78-85.

Mantravadi S V, Rhoadarmer T A, Glas R S. Simple laboratory system for generating well-controlled atmospheric-like turbulence [J]. SPIE, 2004, 5553:290-300.

Wang P, Deng Y L. High brightness fiber coupled diode laser module [J]. Chin. J. Lumin.(发光学报), 2013, 34(12):1335-1341 (in Chinese).

Views

116

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Coherent Measurement and Analysis of Vertical-cavity Surface-emitting Laser

Related Author

SHI Jing-jing

QIN Li

NING Yong-qiang

LIU Yun

ZHANG Jin-long

CAO Jun-sheng

WANG Li-jun

Related Institution

Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

Graduate School of Chinese Academy of Sciences

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176862 Email：fgxbt@126.com
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰