scholarly journals Improved single channel backpropagation for intra-channel fiber nonlinearity compensation in long-haul optical communication systems

2010 ◽  
Vol 18 (16) ◽  
pp. 17075 ◽  
Author(s):  
Liang B. Du ◽  
Arthur J. Lowery
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Single Channel ◽  
Nonlinearity Compensation ◽  
Fiber Nonlinearity ◽  
Optical Communication Systems

scholarly journals A Survey on Fiber Nonlinearity Compensation for 400 Gb/s and Beyond Optical Communication Systems

2017 ◽  
Vol 19 (4) ◽  
pp. 3097-3113 ◽  
Author(s):  
Abdelkerim Amari ◽  
Octavia A. Dobre ◽  
Ramachandran Venkatesan ◽  
O. S. Sunish Kumar ◽  
Philippe Ciblat ◽  
...  
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Nonlinearity Compensation ◽  
Fiber Nonlinearity ◽  
Optical Communication Systems

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.

scholarly journals Performance Analysis of Planar Nanocavities-Based Wavelength Demultiplexer for Optical Communication Systems

2013 ◽  
Vol 11 (5) ◽  
pp. 2552-2585
Author(s):  
Rasha H. Mahdi ◽  
Raad Sami Fyath
Keyword(s):  
Wavelength Division Multiplexing ◽  
Optical Communication ◽  
Communication Systems ◽  
Single Channel ◽  
Selective Reflection ◽  
Wavelength Division ◽  
Channel One ◽  
Wavelength Demultiplexer ◽  
Integrated Optical ◽  
Optical Communication Systems

This paper presents the design and analysis of planar plasmonic wavelength demultiplexer for optical communication systems. The demultiplexer is based on silver-air-silver plasmonic waveguide supported by two nanocavities for each drop channel. One cavity is used as a resonant tunneling-based channel drop filter while the other is used to realize wavelength-selective reflection feedback in the bus waveguide.  For each channel, a parametric study is performed to characterize the performance of the two corresponding nanocavities when they are operating in isolated mode.  The results are then used as a basis to design a single-channel demultiplexer by introducing the coupling between the two nanocavities. Simulation results are reported for a three-channel demultiplexer (1550, 1300, and 850 nm) using Computer Simulation Technology (CST) software package. A drop efficiency as high as  is obtained for each drop channel in the designed demultiplexer. The simulated results can be used as a guideline to design ultra-compact wavelength-division multiplexing (WDM) systems in highly integrated optical circuits. 

Dispersion Compensating Square Photonic Crystal Fiber for Optical Communication Systems

2009 ◽  
Vol 129 (4) ◽  
pp. 601-607
Author(s):  
Shubi F. Kaijage ◽  
Yoshinori Namihira ◽  
Nguyen H. Hai ◽  
Feroza Begum ◽  
S. M. Abdur Razzak ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Optical Communication ◽  
Communication Systems ◽  
Crystal Fiber ◽  
Optical Communication Systems
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