Laser & Optoelectronics Progress, Volume. 60, Issue 19, 1906001(2023)
Probabiliy Shaping Orthogonal Frequency Division Multiplexing Optical Signal Transmission System Based on Wavelength Conversion
This study theoretically analyzed the reasons why, in the copolarized dual-pump scheme, wavelength conversion does not change the probability distribution of the probability shaping (PS) signal and the order of orthogonal frequency division multiplexing (OFDM) signal subcarriers can remain unchanged. Then, after all-optical wavelength conversion, the transmission of the PS-64QAM-OFDM signal through a highly nonlinear optical fiber in a homodyne coherent detection system was experimentally verified. Finally, the experimental results indicate that when the baud rate is 20 Gbaud and the bit error rate is 1×10-2, the optical signal-to-noise ratio (OSNR) loss of an ordinary 64QAM signal is 1 dB, and the OSNR loss for PS-64QAM signal is improved by 0.5 dB.
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Xia Hu, Li Zhao, Jianjun Yu. Probabiliy Shaping Orthogonal Frequency Division Multiplexing Optical Signal Transmission System Based on Wavelength Conversion[J]. Laser & Optoelectronics Progress, 2023, 60(19): 1906001
Category: Fiber Optics and Optical Communications
Received: Mar. 24, 2022
Accepted: Jun. 13, 2022
Published Online: Sep. 25, 2023
The Author Email: Zhao Li (16110720097@fudan.edu.cn)