Suppression of Nonlinear XPM Phenomenon by Selection of Appropriate Transmit Power Levels in the DWDM System

Tomáš Ivaniga,Petr Ivaniga

doi:10.1155/2019/9357949

Abstract

In the 21st century, it is not possible to implement fully optical communication systems without software tools to test the system for all unwanted phenomena occurring during real-time operation. With ever-increasing transmission rate and low latency, nonlinear phenomena are associated with higher power levels and smaller spacing between channels began to appear in OFs (optical fibers). This paper aims to implement a four-channel DWDM (Dense Wavelength Division Multiplex) system on which the nonlinear XPM (cross-phase modulation) phenomenon will be investigated. At the output of the system, we will eliminate the phenomenon (partially suppressed) by the appropriate choice of transmitting power levels (power levels operating at 193,025 THz to 193,175 THz) when the OF is dispersed. In optical transfer data systems a system is functioning if the measured BER parameter is not bigger than 10−12.

Highlights

One of the parameters for assessing the quality of life in our modern age is access to information and information resources in general, their veracity, timeliness, and punctuality
More efficient use of fiber optic transmission bandwidth is currently enabled by WDM (Wavelength Division Multiplexing) technology, with ongoing upgrades to achieve higher speed and transmission quality
From the simulation results (Tables 1 and 2), we can conclude that the nonlinear phenomenon XPM could be partially suppressed by appropriate choice of transmitting power and dispersions

Summary

Introduction

One of the parameters for assessing the quality of life in our modern age is access to information and information resources in general, their veracity, timeliness, and punctuality. Current development trends in the area of communication technologies, in addition to the nonlinear increasing requirements for transmission speed and the increase in the volume of transmitted data, highlight the quality requirements of high-speed infrastructure [1,2,3]. This steady increase in requirements moves from the development of telecommunication services and is due to the rapidly evolving use of information technology of various broadband multimedia services. In the last chapter is created a 4channel DWDM system in programme OptSim, where XPM is shown

WDM Technology

Receiver B

Nonlinear Phenomena Focusing on XPM

Realization of a 4-Channel System to Eliminate XPM

Conclusion