scholarly journals Dispersion compensation of optical systems utilizing fiber Bragg grating at 15 Gbits/s

2021 ◽  
Vol 22 (1) ◽  
pp. 369
Author(s):  
Alaa Hussein Ali ◽  
Saad Mutashar ◽  
Ali Mahdi Hammadi
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Optical Communication ◽  
Communication Systems ◽  
Fiber Length ◽  
Transmission System ◽  
Design Parameters ◽  
Bragg Grating ◽  
Optical Communication Systems ◽  
Wdm Transmission

Nowadays the technological advancement of the information transmission is developing very rapidly and it becomes necessary to achieve a high speed in the transmission of data as well as higher data rate. Developments in optical communication systems address these needs. However, despite all the features and advantages of optical communication systems, the dispersion is still the main challenges. In this paper and to this end, fiber Bragg grating (FBG) is used in order to overcome the dispersion issue in the wavelength division multiplexing (WDM) transmission system. The WDM transmission system is simulated using the advanced tools of Optisystem 13. The simulation program was used at a speed of 15 Gbits/s with 50Km optical fiber length based on the different input design parameters such as input signal power, optical fiber length and attenuation coefficient. In addition, the output performance parameters are discussed in terms of quality factor (Q-factor) and eye diagram. Moreover, a comparison between the proposed design and previous related works is presented.

A Review on Hybrid Optical Amplifiers

2018 ◽  
Vol 39 (3) ◽  
pp. 267-272 ◽  
Author(s):  
Mehtab Singh
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Optical Amplifiers ◽  
Low Cost ◽  
Transmission System ◽  
Optical Link ◽  
Efficient Performance ◽  
Optical Communication Systems

Abstract The implementation of hybrid optical amplifiers has led to the emergence of DWDM in optical communication systems. By implementation of hybrid optical amplifiers, the performance of DWDM transmission can be enhanced. In this paper, different configurations of hybrid optical amplifiers are discussed which can be implemented at low cost and efficient performance of DWDM transmission system. Optical amplifiers can be used in different hybrid configurations to enhance the performance of the optical link and minimize the limitations of existing amplifiers.

scholarly journals A tutorial on fiber Kerr nonlinearity effect and its compensation in optical communication systems

2021 ◽  
Author(s):  
Sunish Kumar
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Communication ◽  
Kerr Effect ◽  
Communication Systems ◽  
Pulse Propagation ◽  
Kerr Nonlinearity ◽  
Nonlinearity Compensation ◽  
Optical Communication Systems ◽  
Nonlinearity Effect

Abstract The advent of silica-based low-cost standard single-mode fibers revolutionized the whole communication industry. The deployment of optical fibers in the networks induces a paradigm shift in the communication technologies used for long-haul information transfer. However, the communication using the optical fibers is affected by several linear and nonlinear effects. The most common linear effects are attenuation and chromatic dispersion, whereas the dominant nonlinear effect is the Kerr effect. The Kerr effect induces a power-dependent nonlinear distortion for the signal propagating in the optical fiber. The detrimental effects of the Kerr nonlinearity limit the capacity of long-haul optical communication systems. Fiber Kerr nonlinearity compensation using digital signal processing (DSP) techniques has been well investigated over several years. In this paper, we provide a comprehensive tutorial, including the fundamental mathematical analysis, on the characteristics of the optical fiber channel, the origin of the Kerr nonlinearity effect, the theory of the pulse propagation in the optical fiber, and the numerical and analytical tools for solving the pulse propagation equation. In addition, we provide a concise review of various DSP techniques for fiber nonlinearity compensation, such as digital back-propagation, Volterra series-based nonlinearity equalization, perturbation theory-based nonlinearity compensation, and phase conjugation. We also carry out numerical simulation and the complexity evaluation of the selected nonlinearity compensation techniques.

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