System Performance and Limits of Optical Modulation Formats in Dense Wavelength Division Multiplexing Systems

  • Rajdi Agalliu Department of Telecommunication Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague
  • Michal Lucki Department of Telecommunication Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague
Keywords: Modulation, optical fiber communication, optical transmitters, WDM networks

Abstract

In this paper we investigate in OptSim software environment the system performance of intensity and phase modulation formats for different network scenarios and dense wavelength division multiplexing grids. OptSim employs the Time Domain Split Step method to implement the signal distribution equation in a fiber. We investigate intensity formats, such as Non Return to Zero, Return to Zero, Carrier-Suppressed Return to Zero and DuoBinary, and phase modulation formats like Differential Phase-Shift Keying and Differential Quadrature Phase-Shift Keying. The main goal is to compare these formats in terms of bit error rate, Q-factor, optical reach and grid limitations for transmission rates 10, 40 and 100 Gbps per channel and discuss the possibilities of increasing their spectral efficiency. We also focus on other advanced solutions such as the polarization division multiplexing combined with phase modulations, coherent detection and advanced digital signal processing which mainly benefits in spectral efficiency, optical signal to noise ratio and chromatic dispersion tolerances.

DOI: http://dx.doi.org/10.5755/j01.eie.22.2.9599

Author Biographies

Rajdi Agalliu, Department of Telecommunication Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague
Rajdi AGALLIU was born in 1989. He received his Master’s degree from the Czech Technical University in Prague FEE in 2013. He is now a Ph.D. student at the same faculty and his research interests include networking and optical communications.
Michal Lucki, Department of Telecommunication Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague
Michal LUCKI was born in 1980. He received his M.Sc. from the Kielce University of Technology and Ph.D. from the Czech Technical University in Prague in 2004 and 2007, respectively. His research interests include photonics, fiber optics, material engineering and solid state physics.
Published
2016-03-30
How to Cite
Agalliu, R., & Lucki, M. (2016). System Performance and Limits of Optical Modulation Formats in Dense Wavelength Division Multiplexing Systems. Elektronika Ir Elektrotechnika, 22(2), 123-129. https://doi.org/10.5755/j01.eie.22.2.9599
Section
TELECOMMUNICATIONS ENGINEERING