Abstract

Starting from the definition of the linewidth enhancement factor of the semiconductor optical amplifier (SOA), the linear relationships between nonlinear effects of cross-gain modulation (XGM), cross-phase modulation (XPM) and cross-polarization modulation (XPOM) in SOA are verified. Wavelength conversion based on XPOM in SOA is numerically analyzed using a simple rate equation model, which shows a high performance of this kind of converter. These results are practical for nonlinear applications of SOA. The advantages of this scheme include simple operation, inverted and non-inverted signal available, etc.

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