Cross-phase modulation in short-period dispersion managed fiber

Abstract

This letter reports on the theoretical investigation of the cross-phase modulation (XPM) in a short-period dispersion managed fiber (SPDMF) system. The results show that to minimize the XPM-induced intensity interference in an SPDMF, the dispersion of the negative section should be less than -14 ps/nm/km, assuming that the dispersion of the positive section was 17 ps/nm/km (as for a conventional single-mode fiber). Together with the design criteria for the suppression of four-wave mixing, this result could be used to optimize an SPDMT for use in high-speed wavelength-division multiplexing systems.