Acta Optica Sinica, Volume. 43, Issue 5, 0506006(2023)
Novel DPSK Demodulation System and Its Performance
Figures & Tables(11)
Fig. 3. Demodulation results of DPSK modulation and demodulation system. (a) m sequence; (b) differential encoding; (c) DPSK modulation; (d) signal of destructive interference port; (e) signal of constructive interference port; (f) demodulation result
Fig. 4. Influence of mismatching of arm length difference and code rate on Q value of system
Fig. 6. Influence of narrow linewidth light source on Q value of traditional interference structure
Fig. 7. Influence of narrow linewidth light source on novel Mach-Zehnder interference structure
Fig. 8. Influence of wide linewidth light source on Q value of novel interference structure
Table 1. Q value and bit error rate of system at different temperatures
View tableTable 1. Q value and bit error rate of system at different temperatures
Temperature /℃ 0 10 20 30 40 50 60 70 Q value 12.51 13.24 12.29 12.83 12.01 12.92 12.67 10.84 Error rate 3.27×10-36 2.71×10-40 5.01×10-35 5.76×10-38 1.59×10-33 1.70×10-38 4.52×10-37 1.13×10-27
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Yuefeng Qi, Yulin Wang, Yicheng Zhu, Zixiong Yang, Tian Li, Zhuoran Jin. Novel DPSK Demodulation System and Its Performance[J]. Acta Optica Sinica, 2023, 43(5): 0506006
Paper Information
Category: Fiber Optics and Optical Communications
Received: Aug. 8, 2022
Accepted: Oct. 14, 2022
Published Online: Feb. 27, 2023
The Author Email: Qi Yuefeng (yfqi@ysu.edu.cn), Wang Yulin (2423530278@qq.com)
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