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The dynamics of nonlinear processes in quantum dot(QD)semiconductor optical amplifiers(SOAs)are investigated.Using small-signal measurements,the suitabilities of cross-gain and cross-phase modulation as well as four wave mixing(FWM)for wavelength conversion are examined.The cross-gain modulation is found to be suitable for wavelength conversion up to a frequency of 40 GHz.
The dynamics of nonlinear processes in quantum dot (QD) semiconductor optical amplifiers (SOAs) are investigated. Using small-signal measurements, the suitabilities of cross-gain and cross-phase modulation as well as four wave mixing (FWM) for wavelength conversion are examined.The cross-gain modulation is found to be suitable for wavelength conversion up to a frequency of 40 GHz.