Guangtongxin yanjiu (Feb 2022)

Research on the Real-time Space Laser PPM Communication System with Ultra-high Sensitivity

  • WANG Zhong-zhong,
  • AO Xue-yuan,
  • ZHANG Shen-mao,
  • ZHANG Da-wei,
  • LIU Chen,
  • YANG Qi,
  • XIONG Liang-ming

Abstract

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Aiming at the low receiving power of space laser communication, a real-time space laser Pulse Position Modulation (PPM) communication system with high receiver sensitivity is designed and implemented in this paper and the transmission rate of this system is 800 Mslot/s. The experimental results show that, after using Erbium Doped Fiber Amplifier (EDFA) and optical filter, under the condition of -58.3 dBm optical input, the Bit Error Rate (BER) of the system before error code correction is 1.4E-4 and the system has ultra-high receiver sensitivity.

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