All-optical simultaneous amplitude and phase regeneration for MPSK signal with ASE noise based on two-wave PSA

OPTICS COMMUNICATIONS

卷:499

Article

Liu, Hong^1,2  Wang, Hongxiang¹  Murugan, Ganapathy Senthil²  Ji, Yuefeng¹ 

[1] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

[2] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

关键词: Phase sensitive amplification;    MPSK signal;    Simultaneous amplitude and phase regeneration;    Two-wave model;    ASE noise;   

DOI  :  10.1016/j.optcom.2021.127281

来源: Elsevier

【 摘 要 】

A phase sensitive amplification (PSA) regeneration model for M-ary phase shift keying (MPSK) signals with amplified spontaneous emission (ASE) noise based on the interference between signal and its (M+1)th harmonic is proposed. Compared with the existing models based on different combinations of signal and harmonics, the new regeneration model is optimal in theory to deal with the MPSK signal degraded by ASE noise. The QPSK format is taken as an example for simulation verification and two existing classic models are also performed with the same parameters for comparison. The regeneration performance is evaluated by input- output constellations, phase and amplitude regeneration factors, and the relay distance at the bit error rate (BER) of 3.8 x 10(-3) by measuring the transmission reach after the regenerator. The results show that the new model has the optimal relay performance for ASE-noise MPSK format, which is promising to be applied in large-capacity, flexible, and reliable optical transport networks.

【 授权许可】

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