Design of Ultra Dense WDM Optical Communication System to Reduce Signal Impairments Using DCF and Repeater Techniques

Akram, Dina S; AL-Tamimi, Haydar M.

doi:10.33103/uot.ijccce.23.3.8

	Design of Ultra Dense WDM Optical Communication System to Reduce Signal Impairments Using DCF and Repeater Techniques
IRAQI JOURNAL OF COMPUTERS, COMMUNICATIONS, CONTROL AND SYSTEMS ENGINEERING
Article 8, Volume 23, Issue 3, September 2023, Pages 90-103 PDF (1.01 M)
Document Type: Research Paper
DOI: 10.33103/uot.ijccce.23.3.8
Authors
Dina S Akram^* ¹; Haydar M. AL-Tamimi²
¹University of technology-Iraq
²University of Technology, Baghdad, Iraq, Department of Communication Engineering
Abstract
Linear and non-linear impairments are the major problems that affected the dense wavelength division multiplexing (DWDM) system performance. In this simulation designs, two different compensation techniques have been proposed to eliminate signal impairments. The repeater technique was proposed to reduce non-linear effects like four-wave mixing (FWM) which cause transfer power from DWDM channels to another new channels. The dispersion compensation fiber (DCF) technique was used to reduce dispersion effects which cause signal pulse broadening over long transmission distances. Also, three different modulation formats and four frequency separations were used to determine which modulation scheme is more compatible with the compensation techniques. The results is calculated in term of quality factor against power and noetic that the carrier suppressed return to zero (CSRZ) format offers the best performance with the DCF technique with 32.1804 Qfactor at 15dBm threshold power then, the differential phase shift keying (DPSK) format is compatible with the repeater technique with 27.7959 quality factor and 14dBm threshold power
Keywords
Dense Wavelength Division Multiplexing (DWDM); Dispersion Compensation Fiber DCF; Repeater; and Non-linear Effects

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