论文标题
研究由纤维相敏感放大器引入的模拟信号失真
Investigation of analog signal distortion introduced by a fiber phase sensitive amplifier
论文作者
论文摘要
我们在数值上模拟了包含相位敏感放大器（PSA）的微波光子链路中携带的模拟信号的失真，主要集中于振幅调制格式。通过与实验测量值进行比较来验证数值模型。通过使用众所周知的两色调测试，我们将使用标准强度调制器与将使用完美线性调制器的情况进行比较。我们还研究了增益饱和对PSA非线性的作用。最后，我们确定了PSA本身引入的信号非线性可能非常小的条件。
We numerically simulate the distortion of an analog signal carried in a microwave photonics link containing a phase sensitive amplifier (PSA), focusing mainly on amplitude modulation format. The numerical model is validated by comparison with experimental measurements. By using the well known two-tone test, we compare the situations in which a standard intensity modulator is used with the one where a perfectly linear modulator would be employed. We also investigate the role of gain saturation on the nonlinearity of the PSA. Finally, we establish the conditions, in which the signal nonlinearity introduced by the PSA itself can be extremely small.
