Dynamic characteristics of a Mach-Zehnder wavelength converter

摘要

Using the high frequency saturation filter effect and dynamic recovery time, the dependence of the frequency chirp and intersymbol interference of a wavelength converter based on cross-phase modulation in Mach-Zehnder wavelength converter is analyzed. While the extinction ratio is kept the same for different probe power, for out phase converting, the poorer performance of the converted signal is due to a longer gain recovery time and the larger intersymbol interference. But for in phase converting, the high probe or fast carrier recovery time is not certain better than that of low probe power.