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Proceedings Article

Technological research of differential phase shift keying receiver in the satellite-to-ground laser communication

[+] Author Affiliations
Xiaoping Ma, Jianfeng Sun, Yanan Zhi, Liren Liu

Shanghai Institute of Optics and Fine Mechanics (China)

Proc. SPIE 8517, Laser Communication and Propagation through the Atmosphere and Oceans, 851714 (October 24, 2012); doi:10.1117/12.928392
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From Conference Volume 8517

  • Laser Communication and Propagation through the Atmosphere and Oceans
  • Alexander M. J. van Eijk; Christopher C. Davis; Stephen M. Hammel; Arun K. Majumdar
  • San Diego, California, USA | August 12, 2012

abstract

Laser communication links between satellite and ground remains a bottleneck problem that has not been solved in free space communication network now. Atmospheric disturbances have badly influenced the wave-front of signal light and destroyed the integrality of optical phase, so the bit error rate (BER) is increased at the receiving terminal in the space-to-ground laser communication. With conventional coherent reception, the contrast of coherent light increased dramatically, and transmission efficiency of Space to ground laser communication decreased. Receiving technology based on differential phase shift keying (DPSK) is proposed here to overcome the effects of atmosphere here. Differential phase shift keying without the integrality and compensation of the optical phases, is suited for high rate space to ground communication links due to its immunity of the wavefront of a beam passing atmosphere. A Mach-Zehnder delay interferometer is used for differential delay which is equal to the one bit period. The differential data information can be obtained from the optical phase changes. Differential phase modulation technique can be a promising optical receiving technology. © (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Xiaoping Ma ; Jianfeng Sun ; Yanan Zhi and Liren Liu
" Technological research of differential phase shift keying receiver in the satellite-to-ground laser communication ", Proc. SPIE 8517, Laser Communication and Propagation through the Atmosphere and Oceans, 851714 (October 24, 2012); doi:10.1117/12.928392; http://dx.doi.org/10.1117/12.928392


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