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Reduction of phase noise to amplitude noise conversion in silicon waveguide-based phase-sensitive amplification

机译:在基于硅波导的相敏放大中将相位噪声转换为幅度噪声

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We use a vector phase sensitive amplification (PSA) scheme, which can eliminate the inherent phase noise (PN) to amplitude noise (AN) conversion in a conventional PSA process. A dispersion-engineered silicon strip waveguide is used to investigate the vector PSA scheme at the telecom wavelengths. The phase-dependent gain and phase-to-phase transfer functions as well as constellation diagram at different signal polarization states (SPSs) are numerically analyzed. It is found that the PN to AN conversion is completely suppressed when the SPS is identical to one of the pump polarization states. Moreover, the binary phase shift keying signal is regenerated by the proposed vector PSA scheme, and the error vector magnitude is calculated to assess the regeneration capacity. Our results have potential application in all-optical signal processing. (C) 2016 Optical Society of America
机译:我们使用矢量相敏放大(PSA)方案,该方案可以消除传统PSA工艺中固有的相位噪声(PN)到幅度噪声(AN)的转换。色散设计的硅条波导用于研究电信波长下的矢量PSA方案。数值分析了不同信号偏振态(SPSs)下与相位有关的增益和相间传递函数以及星座图。发现当SPS等于泵浦极化状态之一时,PN到AN的转换被完全抑制。此外,通过提出的矢量PSA方案可再生二进制相移键控信号,并计算误差矢量幅值以评估再生能力。我们的结果在全光信号处理中具有潜在的应用前景。 (C)2016美国眼镜学会

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