A NEW NUMERICAL MODEL FOR THE PUMP-TO-SIGNAL RIN TRANSFER IN SINGLE-PUMP FIBER OPTICAL PARAMETRIC AMPLIFIERS

Using a new numerical model, the pump-to-signal relative intensity noise (RIN) transfer in singlepump fiber optical parametric amplifiers for low modulation frequencies is investigated. The model includes fiber loss, pump depletion, as well as the gain saturation, and therefore, it can describe the practical circumstances associated with various applications of fiber optical parametric amplifiers. The nonlinear dynamics of the RIN transfer for different pump and signal powers is studied. The impact of the input pump and signal powers and signal wavelength on the RIN transfer is also investigated. Finally, the model is compared to the available experimental data and a very good agreement is obtained.