Jiashun Hu, Zaichen Zhang, Liang Wu, Jian Dang, Guanghao Zhu. Average BER of coherent optical QPSK systems with phase errors over M turbulence channels[J]. Chinese Optics Letters, 2018, 16(12): 120101
- Chinese Optics Letters
- Vol. 16, Issue 12, 120101 (2018)
Fig. 1. Block diagram of the coherent FSO system. PRBS: pseudo-random binary sequence; MZM: Mach-Zehnder modulator; I: in-phase; Q: quadrature; LO: local oscillator; ADC: analog-to-digital converter.
Fig. 2. Average BER versus average SNR for laser LW of 100 kHz and 10 MHz under different atmospheric turbulence conditions.
Fig. 3. Average BER versus laser LW for normalized jitter σ s / a = 1 σ s / a = 5
Fig. 4. Average BER versus average SNR for different values of ρ LW = 10 MHz σ s / a = 5
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