A Transmission Model of Analog Signals in Photonic Links

We investigate the transmission of analog photonic signals based on coupled-mode theory and small-signal analysis and provide general expressions for signal evolution along standard single-mode-fiber links. Such model consists of a set of terms that correspond to polarization effects, chromatic dispersion (CD), and fiber nonlinearity. Based on the proposed complete model, we further investigate two typical cases, including the interaction between polarization effects and CD, as well as CD and Kerr effects. In addition, the limitations of the noise figure and spur-free dynamic range are investigated in dispersive nonlinear links.