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Simulation and measurement of dispersions in optical access networks
Kováč, Filip ; Münster, Petr (referee) ; Šifta, Radim (advisor)
Thesis deals with detailed description of the chromatic dispersion–CD and polarization mode dispersion–PMD. In theoretical part is dismantled at the beginning of words and mathematical principles of dispersion, further distribution of dispersion in terms of single-mode and multi-mode optic fibers through compensation, either fibers (chromatic dispersion) or systems (polarization mode dispersion). Theoretical part also consult the standard ITU-T specifically in term of fibers G.652, G.653, G.655, G.656, G.657, are described and compared. The penultimate section deals with major subject and by measuring both of the above dispersions. Finally, the theoretical part is devoted to optical access networks, which describes the optical access network such as its division and at the end describes the different types networks as APON/BPON, GPON, EPON, 10GEPON and XG-PON. The practical part is divided into measurement dispersions (EXFO FTB-5700) and simulation dispersions (OptSim). Both steps use the same type and length of fiber (6 km G.653, 20, 60 km G.652). According before creating the measured and simulation diagrams are obtained fibres parameters, which are finally compared.
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Analysis of optical access networks in the Czech Republic
Štefančík, Matej ; Šifta, Radim (referee) ; Münster, Petr (advisor)
The work provides an introduction to optical access networks. Describes the basic functional units, the architecture of these networks, defines the basic network elements. Discusses various construction technologies from classic to modern. The next chapter analyzes optical access networks in the Czech republic. Focused on actual status of these networks, based on statistical data. An important part is the future direction of development over the next few years. The new trends and ideas that appear in this field. At the end of the chapter was summarized anonymous survey conducted through a questionnaire sent to the owner of the optical access networks, the output of which were the parameters of the networks. All collected data served as a source for design creation of the standard variants of optical access networks along with the technical specifications and financial balances. For individual network designs were developed models in the simulation environment used for the analysis. The last chapter briefly compared strengths and weaknesses of created variants of the optical access networks.
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100G passive optical network
Sporni, Alex ; Tomašov, Adrián (referee) ; Horváth, Tomáš (advisor)
This diploma thesis deals with the current state of development of passive optical networks, with the main emphasis on high-speed passive optical networks of 50 Gb/s and higher. The opening part of the thesis provides a theoretical introduction to optical access networks, their division, elements of passive optical networks and the subsequent analysis of the latest standards. As part of the implementation, simulation topologies for various simulation scenarios are designed in the VPIphotonics Transmission Maker tool. The proposed simulations are properly evaluated in the next chapter. The quality of the proposed simulation topology is assessed using bit/symbol error rate and in some cases in combination with an eye diagram (quality factor). The output of the work are simulation scenarios for various configurations and modulation formats of the proposed optical networks. The output of the work is also a laboratory task, which will be used for teaching purposes.
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Model of optical network for high-speed data transfer
Filip, Tomáš ; Šporik, Jan (referee) ; Tejkal, Vladimír (advisor)
The main goal of this diploma thesis is to design of high-speed optical network. The first part deals with theoretical knowledge in the field of optical transmissions, especially principle of wavelength division multiplexing. Generally speaking, this part is dedicated to optical connections over long distances. It will concentrate on different types of wavelength division multiplexing, optical fiber amplifiers and other basic optical components. Then it discusses influence of negative effects acting on optical transmission and discusses how to reduce or suppress their influence. Subsequently, there is designed backbone network in the Czech Republic in OptiSystem 7.0 software and are verified some mentioned theoretical knowledge. One of chapters also presents results of measurements of real optical routes in our state. The second part of the diploma thesis moves its attention on that part of optical network, which provides data connectivity to end users, that means it is focused on optical access network. There are described the most common topologies, standards and components. Based on these findings, in the last chapter, there is worked out design of optical access network FTTH (more precisely FTTD) in the selected location. Afterwards, the design is transferred to the OptiSystem 7.0 software, where is verified its functionality.
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|
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100G passive optical network
Sporni, Alex ; Tomašov, Adrián (referee) ; Horváth, Tomáš (advisor)
This diploma thesis deals with the current state of development of passive optical networks, with the main emphasis on high-speed passive optical networks of 50 Gb/s and higher. The opening part of the thesis provides a theoretical introduction to optical access networks, their division, elements of passive optical networks and the subsequent analysis of the latest standards. As part of the implementation, simulation topologies for various simulation scenarios are designed in the VPIphotonics Transmission Maker tool. The proposed simulations are properly evaluated in the next chapter. The quality of the proposed simulation topology is assessed using bit/symbol error rate and in some cases in combination with an eye diagram (quality factor). The output of the work are simulation scenarios for various configurations and modulation formats of the proposed optical networks. The output of the work is also a laboratory task, which will be used for teaching purposes.
|
|
|
Simulation and measurement of dispersions in optical access networks
Kováč, Filip ; Münster, Petr (referee) ; Šifta, Radim (advisor)
Thesis deals with detailed description of the chromatic dispersion–CD and polarization mode dispersion–PMD. In theoretical part is dismantled at the beginning of words and mathematical principles of dispersion, further distribution of dispersion in terms of single-mode and multi-mode optic fibers through compensation, either fibers (chromatic dispersion) or systems (polarization mode dispersion). Theoretical part also consult the standard ITU-T specifically in term of fibers G.652, G.653, G.655, G.656, G.657, are described and compared. The penultimate section deals with major subject and by measuring both of the above dispersions. Finally, the theoretical part is devoted to optical access networks, which describes the optical access network such as its division and at the end describes the different types networks as APON/BPON, GPON, EPON, 10GEPON and XG-PON. The practical part is divided into measurement dispersions (EXFO FTB-5700) and simulation dispersions (OptSim). Both steps use the same type and length of fiber (6 km G.653, 20, 60 km G.652). According before creating the measured and simulation diagrams are obtained fibres parameters, which are finally compared.
|
|
|
Analysis of optical access networks in the Czech Republic
Štefančík, Matej ; Šifta, Radim (referee) ; Münster, Petr (advisor)
The work provides an introduction to optical access networks. Describes the basic functional units, the architecture of these networks, defines the basic network elements. Discusses various construction technologies from classic to modern. The next chapter analyzes optical access networks in the Czech republic. Focused on actual status of these networks, based on statistical data. An important part is the future direction of development over the next few years. The new trends and ideas that appear in this field. At the end of the chapter was summarized anonymous survey conducted through a questionnaire sent to the owner of the optical access networks, the output of which were the parameters of the networks. All collected data served as a source for design creation of the standard variants of optical access networks along with the technical specifications and financial balances. For individual network designs were developed models in the simulation environment used for the analysis. The last chapter briefly compared strengths and weaknesses of created variants of the optical access networks.
|
|
|
Model of optical network for high-speed data transfer
Filip, Tomáš ; Šporik, Jan (referee) ; Tejkal, Vladimír (advisor)
The main goal of this diploma thesis is to design of high-speed optical network. The first part deals with theoretical knowledge in the field of optical transmissions, especially principle of wavelength division multiplexing. Generally speaking, this part is dedicated to optical connections over long distances. It will concentrate on different types of wavelength division multiplexing, optical fiber amplifiers and other basic optical components. Then it discusses influence of negative effects acting on optical transmission and discusses how to reduce or suppress their influence. Subsequently, there is designed backbone network in the Czech Republic in OptiSystem 7.0 software and are verified some mentioned theoretical knowledge. One of chapters also presents results of measurements of real optical routes in our state. The second part of the diploma thesis moves its attention on that part of optical network, which provides data connectivity to end users, that means it is focused on optical access network. There are described the most common topologies, standards and components. Based on these findings, in the last chapter, there is worked out design of optical access network FTTH (more precisely FTTD) in the selected location. Afterwards, the design is transferred to the OptiSystem 7.0 software, where is verified its functionality.
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