Simulation and comprehensive assessment of single channel RZ-DPSK optical link by dispersion management with channel bit rate beyond 40 Gbits/s

2012 ◽  
Vol 5 (3) ◽  
pp. 322-329
Author(s):  
Hamidine Mahamadou ◽  
Xiuhua Yuan ◽  
Eljack M. Sarah ◽  
Weizheng Zou
Keyword(s):  
Single Channel ◽  
Comprehensive Assessment ◽  
Bit Rate ◽  
Dispersion Management ◽  
Optical Link

1.7 Gbit/s multiplexing-demultiplexing system for a high-bit-rate optical link

1985 ◽  
Vol 21 (11) ◽  
pp. 487-489 ◽  
Author(s):  
M. Henry ◽  
P. Maheo ◽  
C. Thebault ◽  
J.C. Vergos
Keyword(s):  
Bit Rate ◽  
Optical Link ◽  
High Bit Rate

OTDM-WDM System Components Modeling

2015 ◽  
pp. 197-244
Keyword(s):  
Optical Fiber ◽  
Spectral Density ◽  
Optical Devices ◽  
Bit Rate ◽  
Dispersion Management ◽  
Signal Modulation ◽  
Modulation Format ◽  
Management Scheme ◽  
System Components ◽  
Key Issues

The purpose of this chapter is to discuss OTDM-WDM system components modeling.Any attempt to model the OTDM-WDM system components would need to take into account a number of key issues that have to be decided upon before a particular system setup can be implemented. Among the key issues are signal modulation format, OTDM channel bit rate, WDM channel bit rate, spectral density, length of transmission, amplification scheme, dispersion management scheme, and optical devices. Further, throughout the chapter, examples are used to demonstrate how OTDM-WDM devices, such as the transmitter, multiplexer, optical fiber, filter, amplifier, demultiplexer, and receiver, are modeled.

scholarly journals Hybrid compensation of polarization-multiplexed QPSK optical format for high bit rate networks

2020 ◽  
Vol 20 (3) ◽  
pp. 1325
Author(s):  
Omar Y. Shabaan ◽  
Omar A. Athab
Keyword(s):  
Single Channel ◽  
Optical Network ◽  
Digital Signal ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Bit Rate ◽  
Fiber Network ◽  
Transmission Distance ◽  
Regeneration Stage ◽  
High Bit Rate

<span lang="EN-GB">Transmitting the highest capacity throughput over the longest possible distance without any regeneration stage is an important goal of any long-haul optical network system. Accordingly, Polarization-Multiplexed Quadrature Phase-Shift-Keying (PM-QPSK) was introduced lately to achieve high bit-rate with relatively high spectral efficiency. Unfortunately, the required broad bandwidth of PM-QPSK increases the linear and nonlinear impairments in the physical layer of the optical fiber network. Increased attention has been spent to compensate for these impairments in the last years. In this paper, Single Mode Fiber (SMF), single channel, PM-QPSK transceiver was simulated, with a mix of optical and electrical (Digital Signal Processing (DSP)) compensation stages to minimize the impairments. The behaviour of the proposed system was investigated under four conditions: without compensation, with only optical compensator, with only DSP compensator and finally with both compensators. An evidence improvement was noticed in the case of hybrid compensation, where the transmission distance was multiplied from (720 km) to more than (3000 km) at 40 Gb/s.</span>

scholarly journals Effect of Fourth-Order Dispersion on Solitonic Interactions

2020 ◽  
Vol 65 (5) ◽  
pp. 378
Author(s):  
K. Khelil ◽  
K. Saouchi ◽  
D. Bahloul
Keyword(s):  
Fourth Order ◽  
Management System ◽  
Communication Systems ◽  
Bit Rate ◽  
Dispersion Management ◽  
Third Order ◽  
Temporal Separation ◽  
The Third ◽  
Interaction Of Solitons ◽  
Order Dispersion

Solitons became important in optical communication systems thanks to their robust nature. However, the interaction of solitons is considered as a bad effect. To avoid interactions, the obvious solution is to respect the temporal separation between two adjacent solitons determined as a bit rate. Nevertheless, many better solutions exist to decrease the bit rate error. In this context, the aim of our work is to study the possibility to delete the interaction of adjacent solitons, by using a special dispersion management system, precisely by introducing both of the third- and fourth-order dispersions in the presence of a group velocity dispersion. To study the influence of the fourth- and third-order dispersions, we use the famous non-linear Schr¨odinger equation solved with the Fast Fourier Transform method. The originality of this work is to bring together the dispersion of the fourth, third, and second orders to separate two solitons close enough to create the Kerr-induced interaction and consequently to improve the propagation by decreasing the bit rate error. This study illustrates the influence of the fourth-order dispersion on one single soliton and two co-propagative solitons with different values of the temporal separation. Then the third order dispersion is introduced in the presence of the fourth-order dispersion in the propagation of one and two solitons in order to study its influence on the interaction. Finally, we show the existence of a precise dispersion management system that allows one to avoid the interaction of solitons.

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