Effects of beam misalignment on space laser communication systems

lu hongqiang; zhao wei; hu hui; wang wei; xie xiaoping

Volume 23 Issue 04

Apr. 2011

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Article Navigation > High Power Laser and Particle Beams > 2011 > 23(04): 0-

liu lifeng, xiao shali, wang hongjian, et al. Application of spherically bent crystals spectrometer to X-ray diagnosis[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

lu hongqiang, zhao wei, hu hui, et al. Effects of beam misalignment on space laser communication systems[J]. High Power Laser and Particle Beams, 2011, 23.

liu lifeng, xiao shali, wang hongjian, et al. Application of spherically bent crystals spectrometer to X-ray diagnosis[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

lu hongqiang, zhao wei, hu hui, et al. Effects of beam misalignment on space laser communication systems[J]. High Power Laser and Particle Beams, 2011, 23.

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Effects of beam misalignment on space laser communication systems

1.
State Key Laboratory of Transient Optics and Photonics,Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710119,China;
2.
Graduate University of Chinese Academy of Sciences,Beijing 100039,China

Publish Date: 2011-04-14

Abstract

Abstract

In order to predict and estimate the effects of atmospheric turbulence, vibration of terminals and misalignment on space laser communication, the amplitude of detected signals changing with lateral offset (between the center of the focused beam and the center of the photodetector in the detecting plane and defocus (between the detecting plane and the focal plane, are calculated in simulation and measured in experiment, and the fit error rate (BER), signal-to-noise ratio and jitter of the detected signals changing with lateral offset and defocus are also measured. The results show that the performance of space laser communication systems would deteriorate significantly as the lateral offset and defocus increase, and the lateral offset has more effect. The maximum defocus and lateral offset
- laser communication,
- beam misalignment,
- bit error rate,
- signal-to-noise ratio

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