Xiong Zhun, Ai Yong, Shan Xin, Chen Jing, Chen Erhu, Zhao Heng, Wu Yunyun. Fiber coupling efficiency and compensation analysis for free space optical communication[J]. Infrared and Laser Engineering, 2013, 42(9): 2510-2514.
| Citation:
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Xiong Zhun, Ai Yong, Shan Xin, Chen Jing, Chen Erhu, Zhao Heng, Wu Yunyun. Fiber coupling efficiency and compensation analysis for free space optical communication[J]. Infrared and Laser Engineering, 2013, 42(9): 2510-2514.
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Fiber coupling efficiency and compensation analysis for free space optical communication
- 1.
School of Electronic Information,Wuhan University,Wuhan 430079,China;
- 2.
Institute of Beijing Tracking and Communication Technology,Beijing 100094,China;
- 3.
The Key Laboratory of Adaptive Optics,Chinese Academy of Sciences,Chengdu 610209,China
- Received Date: 2013-01-11
- Rev Recd Date:
2013-02-14
- Publish Date:
2013-09-25
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Abstract
The coupling efficiency of received optical power into a single-mode fiber is degraded by atmospheric turbulence in a free space optical communication system. The expression of average coupling efficiency of a collimated Gaussian beam into a single-mode fiber was derived under Kolmogorov turbulence channel, according to the theory of weak turbulence statistics. The relations between average coupling efficiency and turbulence intensity under different received aperture in 1 km propagation path were also simulated. The results show that coupling efficiency decreases below 0.1 when refractive-index structure constant rises to 10-12, and coupling efficiency degrades when the received aperture increases. A 37-element adaptive optics system with H-S wavefront sensor was adopted to compensate the efficiency. Compared with long exposure imaging and centroid position offset in different status of AO system, it was found that the P-V value and standard deviation decreased, Strehl ratio and coupling efficiency increased in low-order aberration correction. And things became better when high-order aberration was corrected.
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References
|
[1]
|
|
|
[2]
|
Hang Liqiang, Wang Qi. Fiber coupling efficiency for free space optical communication through atmospheric turbulence and compensation[J]. Opto-Electronic Engineering, 2011, 38(5): 109-113. (in Chinese) |
|
[3]
|
Yamac D, Frederic M D. Fiber-coupling efficiency for free-space optical communication through atmospheric turbulence[J]. Applied Optics(S2155-3165), 2005, 44(23): 4946-4952. |
|
[4]
|
|
|
[5]
|
|
|
[6]
|
Jobling S, McCuske K T, Kwiat P G. Adaptive optics for improved mode-coupling efficiencies[C]//Laser Science XXIV, OSA Technical Digest, 2008: JWA32. |
|
[7]
|
Andrews L C, Phillips R L. Laser Beam Propagation Through Random Media[M]. Belilingham: SPIE Press, 2005. |
|
[8]
|
|
|
[9]
|
|
|
[10]
|
Yamac D, Frederic M D. Fiber-coupling efficiency for free-space optical communication through atmospheric turbulence[J]. Applied Optics(S2155 -3165), 2005, 44(23): 4946-4952. |
|
[11]
|
Xiang Jingsong, Chen Yan, Hu Yu. Influence of atmospheric turbulence on coupling space light into single mode fiber[J].High Power Laser and Particle Beams, 2006, 18(3): 377-380. (in Chinese) |
|
[12]
|
|
|
[13]
|
Han Yan, Qiang Wenxi, Xu Xianjun, et al. Irradiance scintillation analysis for laser beam propagation in turbulence atmosphere near-round[J]. Infrared and Laser Engineering, 2006, 35(21): 415-421. (in Chinese) |
|
[14]
|
|
|
[15]
|
|
|
[16]
|
Xiong Jie, Yuan Xiuhua. Array optical antenna for the mitigation of atmospheric fading[J]. Infrared and Laser Engineering, 2011, 40(10): 1969-1973. (in Chinese) |
|
[17]
|
Fan Chengyu, Wang Yingjian, Gong Zhiben. Compensation analysis for different beacon wavelengths in strong turbulence with adaptive optics[J]. Acta Optica Sinica, 2003, 23(12): 82-85. (in Chinese) |
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