Experimental study of the influence of laser spatial coherenceon illumination uniformity
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Institute of Laser Physics & Chemistry, Sichuan University, Chengdu, 610064;
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2.
Department of Physics, North Sichuan Medical College, Nanchong, 63700;
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3.
Institute of Applied Electronics, CAEP, Mianyang, 621900
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Received Date:
2002-11-26
Accepted Date:
2003-01-27
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Abstract
The experimental study of the influence of laser spatial coherence on illumination uniformity is made.It is shown that the coherence property of laser affects the illumination uniformity.The scintillation index and the power spectral density of the illumination spot on the target decrease with decreasing spatial coherence of laser beams.As a result,the illumination uniformity can be improved.The experimental results obtained in this paper are useful for appropriately choosing the laser illuminator in practice.
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References
|
[1]
|
张逸新,迟泽英.光波在大气中的传输与成像.北京:国防工业出版社,1997.
|
|
[2]
|
Andrews L C,Phillips R L.Laser beam propagation through random media.Washington:SPIE Optical Engineering Press,1998. |
|
[3]
|
Andrews L C,Phillips R L,Hopen C Y et al.J O S A,1999,A16(1):1417～1429. |
|
[4]
|
Higgs C.SPIE,1998,3381:13～21. |
|
[5]
|
Higgs C,Barclay H,Kansky J.SPIE,1998,3381:244～254. |
|
[6]
|
Billman K W,Horwitz B A,Shattuck P L.SPIE,1999,3706:196～203. |
|
[7]
|
Higgs C,Barclay H T.SPIE,1999,3706:206～215. |
|
[8]
|
Mandel L,Wolf E.Optical coherence and quantum optics.London:Cambridge University Press,1995. |
|
[9]
|
Proakis J G著.张力军,张宗橙,郑宝玉 et al译.数字通信.3版,北京:电子工业出版社,2001.
|
|
[10]
|
Welch P D.IEEE Trans Audio Electroacoust,1967,AU-15:70～73. |
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