Title: Compensation characteristics of optical signal distortions in dispersion-managed optical links with randomly distributed RDPS

Authors: Hwang-Bin Yim; Seong-Real Lee

Addresses: Department of Information and Communication Engineering, Gangwon Provincial College, Gangwon-do, 210-804, Korea ' Department of Marine Information and Communication Engineering, Mokpo National Maritime University, Jeollanam-do, 530-729, Korea

Abstract: In high-capacity and long-haul optical communication systems, signal distortion is induced by the group velocity dispersion (GVD) and nonlinear Kerr effects of optical fibres. Different techniques to compensate for the signal distortion in the optical links, by using an optical phase conjugator (OPC), have been proposed in the literature. However, compensation by the use of an OPC is limited by the asymmetry of the signal power. Dispersion management (DM) combined with an OPC is one of the various techniques for overcoming this drawback. The system performance improvement in these optical links has been reported; however, the fixed residual dispersion per span (RDPS) usually used in the optical links with an OPC and DM restricts flexible link configuration. In this paper, OPC links combined with DM of randomly distributed RDPS is proposed for implementing a flexible optical transmission network. We confirm that the proposed links are effective for our purpose, if the averaged RDPS of the fibre span was selected to be non-zero and low.

Keywords: dispersion management; optical phase conjugator; OPC; random distribution; residual dispersion per span; RDPS; net residual dispersion; NRD; compensation characteristics; optical signal distortion; optical links; optical communications; group velocity dispersion; nonlinear Kerr effects; optical fibres; optical transmission networks.

DOI: 10.1504/IJICT.2016.073638

International Journal of Information and Communication Technology, 2016 Vol.8 No.1, pp.37 - 49

Available online: 15 Dec 2015 *

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