Simultaneous wavelength conversion and optical phase conjugation of 200 Gb/s (5/spl times/40 Gb/s) WDM signal using a highly nonlinear fiber four-wave mixer

A simultaneous wavelength conversion of 200 Gb/s (5/spl times/40 Gb/s) WDM signal over the entire gain band of an Er-doped fiber amplifier (EDFA) is demonstrated by a four-wave mixing in a dispersion arranged 750-m highly nonlinear dispersion-shifted fiber with a nonlinear coefficient of 20.4 W/sup -1/ km/sup -1/. Simultaneous optical phase conjugation is also demonstrated with successful dispersion compensation in a 200 Gb/s (5/spl times/40 Gb/s) WDM transmission through a 105 km conventional single-mode fiber.