Influence of system jitter on far field of coherently combined beams propagation in turbulent atmosphere
-
1.
Department of Opto-electronics, Sichuan University, Chengdu 610064, China;
-
2.
School of Physics or Electron Engineering, Yangze Normal University, Chongqing 408100, China
-
Corresponding author:
CHEN Jian-guo, opticslab@163.com
;
-
Received Date:
2009-07-08
Accepted Date:
2009-11-17
-
Abstract
In order to study the influence of system jitter on far field of coherently combined beams propagating in turbulent atmosphere,the expression for the far field energy distribution,affected by jitter of the system,was deduced based on Huygens-Fresnel principle.Taking a hexagonal-shaped laser array as an example,the influence of jitter on far-field was also analyzed with different turbulent intensity or transmission distance.The restricted phase jitter was depicted under the condition that the maximum intensity and power in the bucket were greater than ninety-two percent of the ideal ones.It is found the maximum intensity and power in the bucket are reduced due to jitter of the system.If the scope of jitter is definite,the effect of jitter will become worse with the decrease of the turbulent intensity or transmission distance.The results are helpful to research of coherent combination propagation in turbulent atmosphere.
-
-
References
|
[1]
|
ANDEREGG J,BROSNAN S,CHEUNG E,et al.Coherent coupled high power fiber arrays[J].Proc SPIE,2006,6102:261020U/1-261020U/5. |
|
[2]
|
HE B,LOU Q H,ZHOU J.113W in-phase mode output from two ytterbium-doped large-core double-cladding fiber lasers[J].Chinese Optics Letter,2007,5(7):412-414. |
|
[3]
|
LIAO Y B.Fiber optics[M].Beijing:Tsinghua University Press,2000:38-42(in Chinese). |
|
[4]
|
CHU X X,LIU Z J,WU Y.Propagation of a general multi-Gaussian beam in turbulent atmosphere in a slant path[J].J O S A,2008,A25(1):74-79. |
|
[5]
|
EYYUBO LU H,BAYKAL Y.Analysis of reciprocity of cos-Gaussian and cosh-Gaussian laser beams in a turbulent atmosphere[J].Optics Express,2004,12(20):4659-4674. |
|
[6]
|
WANG S C H,PLONUS M A.Optical beam propagation for a partially coherent source in the turbulent atmoaphere[J].J O S A,1979,69(9):1297-1304. |
|
[7]
|
ZHOU P,XU X J,LIU Z J,et al.Propagation of coherently combined laser beam in turbulent atmosphere[J].Acta Optica Sinica,2008,28(11):2051-2056(in Chinese). |
|
[8]
|
CAO J Q,HOU J,XU X J.Influence of combining errors in the system for coherent combining of fiber lasers on the far field of output[J].Chinese Journal of Lasers,2008,35(3):351-358(in Chinese). |
|
[9]
|
WANG Sh Y,LIN D Y,WANG Ch,et al.Recent progress of fiber beams combination[J].Laser Technology,2005,29(6):657-661(in Chinese). |
|
[10]
|
LI Y Zh,QIAN L J,LU D Q,et al.Coherent and incoherent combining of fiber array with hexagonal ring distribution[J].Opt & Laser Technol,2007,39(5):957-963. |
|
[11]
|
YAN H Q,LI Sh Sh,ZHANG D L,et al.Numerical simulation of an adaptive optics system with laser propagation in the atmosphere[J].Appl Opt,2000,39(18):3023-3031. |
|
[12]
|
SHI X G,DOU R H,JING Sh,et al.Influence of system jitter on far field of coherently combined beam[J].Laser Technology,2009,33(5):493-496(in Chinese). |
-
-
Proportional views
-
Map
DownLoad: