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Transmission Impairment Mitigation for Single-Sideband Signals by Optical Phase Conjugation
IEEE Photonics Technology Letters ( IF 2.3 ) Pub Date : 2020-02-01 , DOI: 10.1109/lpt.2019.2962712
Honghui Zhang , Qiulin Zhang , Chaoran Huang , Chester Shu

We experimentally demonstrate an optical phase conjugation (OPC) enhanced transmission system based on the Kramers–Kronig direct detection scheme. The single-sideband signal is modulated at 80-Gb/s 16-QAM with orthogonal frequency-division multiplexing. In the 180-km transmission experiment, the OPC surpasses digital chromatic dispersion compensation in Q factor, optimum launched optical power (LOP) and optical signal-to-noise ratio (OSNR) sensitivity. The improvement in Q factor, optimum LOP and OSNR sensitivity are 0.9 dB, 1.0 dB, and 1.7 dB respectively. The superiority of OPC over pure optical dispersion compensation is also analyzed by simulation. The results indicate that the OPC is an effective means to enhance the transmission performance of single-sideband signals.

中文翻译:

通过光相位共轭减轻单边带信号的传输损伤

我们通过实验证明了基于 Kramers-Kronig 直接检测方案的光学相位共轭 (OPC) 增强传输系统。单边带信号通过正交频分复用以 80-Gb/s 16-QAM 进行调制。在 180 公里传输实验中,OPC 在 Q 因子、最佳发射光功率 (LOP) 和光信噪比 (OSNR) 灵敏度方面超越了数字色散补偿。Q 因子、最佳 LOP 和 OSNR 灵敏度的改进分别为 0.9 dB、1.0 dB 和 1.7 dB。还通过仿真分析了 OPC 相对于纯光色散补偿的优越性。结果表明,OPC是提高单边带信号传输性能的有效手段。
更新日期:2020-02-01
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