Abstract

All-optical regeneration is likely to be a fundamental building block in next generation optical networks. As far as the Re-amplifying and Re-shaping operations (2R) are concerned, the scheme relying on spectral broadening in a highly nonlinear fibre (HNLF) and subsequent offset filtering (Mamyshev’s technique) has attracted much attention over recent years (see e.g. [1]). In a WDM environment, it would be highly desirable to extend 2R schemes in order to simultaneously support regeneration of more than one channel. In this paper, we report a 2R scheme based on Mamyshev’s approach, and demonstrate the possibility to simultaneously regenerate two channels within the same HNLF by investigating the penalties induced by inter-channel crosstalk.

© 2007 IEEE