Four-Wave Mixing Characteristics with Optimum Time-Delays Between Pump-Probe Pulses in Semiconductor Optical Amplifiers

We have analyzed the four-wave mixing (FWM) characteristics with optimum time-delays between pump and probe pulses in semiconductor optical amplifiers (SOAs) by the finite-difference beam propagation method (FD-BPM). The study of FWM characteristics with optimum time-delays between pump and probe pulses in SOAs has the importance to achieve the high FWM conversion efficiency and to clarify the timing jitter. From the simulations, we have clarified that the FWM conversion efficiency increases with optimum time-delays between pump and probe pulses. In the experiment, we have found the same tendency. Therefore, we have obtained an excellent agreement between the simulation and experimental results of FWM characteristics with optimum time-delays between pulses in SOAs.