Pseudo-symmetric link configuration in dispersion-managed WDM transmission system with optical phase conjugator

Abstract

Dispersion management (DM) combined with optical phase conjugation (OPC) in optical transmission systems is one of the alternative techniques for overcoming the signal distortion due to chromatic dispersion and nonlinear Kerr effects. The system performance improvement in these optical links has been reported; however, the fixed length of a single-mode fiber restricts the flexible link configuration. In this paper, a new optical link scheme called pseudo-symmetric configuration is proposed for implementing a flexible optical transmission network. We confirm that the proposed links are effective for our purpose, if DM parameters, such as residual dispersion per span and net residual dispersion, are appropriately selected on the basis of the link parameters. © 2014 International Information Institute.