Signal Impairments Compensation Based on Wavelength-Shift-Free Optical Phase Conjugation

Xiaoxue Gong; Wenling Xiao; Qihan Zhang; Tiantian Zhang; Xing Yin; Lei Guo

doi:10.3788/AOS231959

Acta Optica Sinica, Volume. 44, Issue 7, 0706002(2024)

Signal Impairments Compensation Based on Wavelength-Shift-Free Optical Phase Conjugation

Xiaoxue Gong¹, Wenling Xiao¹, Qihan Zhang^2、*, Tiantian Zhang¹, Xing Yin¹, and Lei Guo¹

¹School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

²School of Computer Science and Engineering, Northeastern University, Shenyang 110819, Liaoning , China

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Figures & Tables(6)

Fig. 1. Wavelength-shift-free OPC wave generation method based on orthogonal polarization pumped NFWM

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Fig. 2. Schematic diagram of IM-DD OFDM system based on OPC wave generated by orthogonal polarization pumped NFWM

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Fig. 3. BER varies with signal optical power

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Fig. 4. BER varies with length of HNLF

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Fig. 5. Transmission performance comparison of wavelength-shift-free, midpoint-shift-value-based, and midpoint-shift-value-free OPC transmission systems. (a) BER curves with ROP under different compensation conditions; (b) OPC transmission system constellation diagram calculated after midpoint-shift-value; (c) OPC transmission system constellation diagram with wavelength-shift-free

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Table 1. Parameter setting

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Table 1. Parameter setting

Parameter	Value
Symbol rate /GBaud	75
Transfer rate /（Gbit/s）	114.375
Number of OFDM symbol	1000
Modulation format	16-QAM
IFFT/FFT point	1024
Number of effective subcarrier	61
Proportion of cyclic prefix	1/4
OFDM optical signal center frequency /THz	193.4145
Center frequency of X-polarization pump signal /THz	193.272
Center frequency of Y-polarization pump signal /THz	193.557
Length of SSMF link /km	240

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Xiaoxue Gong, Wenling Xiao, Qihan Zhang, Tiantian Zhang, Xing Yin, Lei Guo. Signal Impairments Compensation Based on Wavelength-Shift-Free Optical Phase Conjugation[J]. Acta Optica Sinica, 2024, 44(7): 0706002

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Dec. 21, 2023

Accepted: Jan. 21, 2024

Published Online: Apr. 11, 2024

The Author Email: Zhang Qihan (qihanzhang@stumail.neu.edu.cn)

DOI:10.3788/AOS231959

CSTR:32393.14.AOS231959

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology