Study on coherent beam combination of fiber laser array
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1.
College of Science, China Three Gorges University, Yichang 443002, China;
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2.
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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Corresponding author:
LIU Yan, liuyan703@163.com
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Received Date:
2014-06-30
Accepted Date:
2014-10-30
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Abstract
Coherent beam was an important method to obtain high power and high beam quality laser. In order to analyze the characteristics of fiber laser beam combination, influence of fiber laser array structure, phase random jitter, fiber spacing, transmission distance and other factors on coherent combination was discussed by comparing the intensity distribution at different propagation distance. Power in the bucket for coherent beam was evaluated. The result shows that intensity distribution of different fiber laser array is different when the propagation distance is near. Intensity distribution is close to Gaussian distribution with the increasing of propagation distance. The number of the maximum intensity distribution points in the axis has the close relationship with the circular number of fiber laser array. The coherent effect is better if the random phase difference of the laser array is smaller. These results are reference to the study of fiber laser coherent combination.
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References
|
[1]
|
HE B, LOU Q H, ZHOU J, et al. Coherent beam combination of fiber lasers[J].Laser Optoelectronics Progress,2006,43(9):47-54(in Chinese). |
|
[2]
|
ZHAO Sh, FAN W D, SHENG Q Q. The research of coherent combining of fiber laser[J].Laser Infrared,2006,36(10):920-924(in Chinese). |
|
[3]
|
MA Y X, SI L, ZHOU P, et al. The key technologies in coherent beam combination of high power fiber laser[J].Journal of National University of Defense Technology,2012,34(1):38-43(in Chinese). |
|
[4]
|
ZHOU J, HE B, XUE Y H, et al. Study on passive coherent beam combination technology of high power fiber laser arrays[J]. Acta Optica Sinica, 2011,31(9):0900129(in Chinese). |
|
[5]
|
WU B, LIU Y Zh. Coherent combination of high power fiber laser beams[J]. Laser Optoelectronics Progress,2006,43(8):56-61(in Chinese). |
|
[6]
|
CHEN J, XUE H Zh, LIU X W, et al. Study of laser beam coherent combination[J]. Opto-Electronic Engineering, 2011,38(9): 65-70(in Chinese). |
|
[7]
|
LI F D, GUO H N, SUN J G, et al. Simulation and experimental study on coherent combination of dual beam fiber laser[J]. Laser Technology,2014,38(7):509-514(in Chinese). |
|
[8]
|
ZHAO N, TANG Ch, XIE G, et al. Numerical simulation on coherent combination of multi-beam super-Gaussian laser[J]. High Power Laser and Particle Beams, 2007, 19(11): 1779-1782(in Chinese). |
|
[9]
|
ZHOU B K, GAO Y Zh, CHEN T R. Principles of lasers[M]. 5th ed. Beijing:National Defence of Industry Press, 2004:70(in Chinese). |
|
[10]
|
LI Zh, XUE Y H, ZHOU J, et al. Evaluation and measurement for beam quality of coherent beam combination of lasers in two-dimensional distribution[J]. Chinese Journal of Lasers, 2011, 38(4): 0402002(in Chinese). |
|
[11]
|
HOU J, XIAO R, JIANG Z F, et al. Coherent beam combination of three ytterbium fiber amplifiers[J]. High Power Laser and Particle Beams, 2006, 18(10): 1585-1588(in Chinese). |
|
[12]
|
LV B D. Laser optics: beam characterization, propagation and transformation, resonator technology and physics [M]. Beijing: Higher Education Press,2003: 85(in Chinese). |
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