Dual-Polarization Carrier Phase Recovery Algorithm Based on Simplified Extended Kalman Filter

Yaozu Li; Muguang Wang; Yuxiao Guo; Hongqian Mu

doi:10.3788/AOS201939.1106005

Acta Optica Sinica, Volume. 39, Issue 11, 1106005(2019)

Dual-Polarization Carrier Phase Recovery Algorithm Based on Simplified Extended Kalman Filter

Yaozu Li^1,2, Muguang Wang^1,2、*, Yuxiao Guo^1,2, and Hongqian Mu^1,2

¹Key Laboratory of All Optical Network and Advanced Telecommunication Network Ministry of Education, Beijing Jiaotong University, Beijing 100044, China

²Institute of lightwave Technology, Beijing Jiaotong University, Beijing 100044, China

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Figures & Tables(8)

Fig. 1. Phase offset between two polarizations and BER analysis of different parameters. (a) Phase noise estimation values of X and Y polarizations; (b) BER with different α

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Fig. 2. Phase recovery block diagram of dual-polarization extended Kalman filter

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Fig. 3. Simulation system of dual-polarization 16-QAM coherent light communication

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Fig. 4. BER versus OSNR for BTB performance

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Fig. 5. BER versus OSNR for 320 km transmission

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Fig. 6. BER versus Δv·T_s after 320 km transmission

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Table 1. Comparison of state parameter dimensions of each algorithm
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Table 1. Comparison of state parameter dimensions of each algorithm
Algorithm K_k R H_k
EKF 1×2 2×2 2×1
SS-EKF 1×1 1×1 1×1
XY-EKF 1×2 2×2 2×1

Table 2. Comparison of computational complexity of each algorithm
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Table 2. Comparison of computational complexity of each algorithm
Algorithm Real adder Real multiplier Look-up table
EKF 42×N 76×N 2
SS-EKF 22×N 38×N 2
XY-EKF 27×N 50×N 2

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Yaozu Li, Muguang Wang, Yuxiao Guo, Hongqian Mu. Dual-Polarization Carrier Phase Recovery Algorithm Based on Simplified Extended Kalman Filter[J]. Acta Optica Sinica, 2019, 39(11): 1106005

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