多电平全光幅度再生器的整形特性

发布时间：2019-03-24 14:28

【摘要】：提出用线性增益和增益斜率分别表征多电平全光幅度再生器的放大和整形特性。利用多电平全光幅度再生器的增益斜率曲线,可确定再生器的整形范围、最佳工作点以及可再生电平数目。重点分析了基于马赫-曾德尔干涉仪(MZI)的多电平全光幅度再生器整形特点,其增益斜率曲线是一个余弦振荡函数,信号振幅越小,可再生电平数就越多。结果表明,脉冲幅度调制信号经过MZI多电平全光幅度再生器后,幅度噪声可得到有效抑制,但相位抖动增加。
[Abstract]:The amplification and shaping characteristics of multilevel all-optical amplitude regenerator are characterized by linear gain and gain slope, respectively. By using the gain slope curve of the multilevel all-optical amplitude regenerator, the shaping range, the optimum operating point and the number of renewable levels of the regenerator can be determined. The shaping characteristics of multilevel full-optical amplitude regenerator based on Mach-Zehnder interferometer (MZI) are analyzed. The gain slope curve is a cosine oscillation function. The smaller the signal amplitude is, the more the renewable level is. The results show that the amplitude noise can be effectively suppressed but the phase jitter increases after the pulse amplitude modulation signal passes through the MZI multilevel all-optical amplitude regenerator.
【作者单位】：电子科技大学光纤传感与通信教育部重点实验室;
【基金】：国家自然科学基金(61671108)
【分类号】：TN911.3

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