Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 144 for “"Optical Networks"”.
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Error Behaviour In Optical Networks
Optical fibre communications are now widely used in many applications, including local area computer networks. I postulate that many future optical LANs will be required to operate with limited optical power budgets for a variety of reasons, including increased system complexity and link speed, low …
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Bragg grating filters for optical networks
… on the exploitation of fibre Bragg gratings in optical communication networks. New designs, as well as procedures for dynamically altering grating characteristics are proposed for several important functions. We begin with designing gratings for flattening the gain profile of an erbium-doped …
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Resource management for dynamic optical networks
The ability of core networks to manage data transmission of increasing volume and variation is critical for the success of data-intensive and network-centric applications as they grow in both scale and complexity. Traditionally, static optical networks were the dominant transport for medium and …
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Wavelength routing for all-optical networks
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.
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Analysis of Photonic Structures for Optical Networks
… de la Célula Lógica Programable Óptica (Optically Programmable Logic Cell, OPLC) basadas en Láseres de Pozo Cuántico, capaces de proporcionar diferentes funciones lógicas booleanas y se propone teóricamente un circuito de recuperación de la señal de reloj utilizando OPLCs. Finalmente, se …
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Sensing and Communication Coexistence in Optical Networks
L'abstract è presente nell'allegato / the abstract is in the attachment
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Traffic engineering for inter-domain optical networks
… WDM. The main idea is to adapt the underlying optical connectivity by measuring the actual traffic load over the existing lightpaths continuously and reacting to the load changes by adding or tearing down lightpaths. We avoid load instability directly by setting up a lightpath when congestion …
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Design of optical networks for advanced applications
… and utility computing based on heterogeneous networks and clients. The current trend suggests that future IT services will rely on distributed resources and on fast communication of heterogeneous contents. The success of this new range of services is directly linked to the effectiveness of the …
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High-performance switching architectures for optical networks
… the need of flexible and highly reconfigurable optical networks. While transmission bandwidth does not represent a limit due to the huge bandwidth provided by optical fibers and Dense Wavelength Division Multiplexing (DWDM) technology, the electronic switching nodes in the core of the network …
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Design and control techniques of optical networks
… technology is the right solution for high speed networks that have to supply wide bandwidth to new communication service providers. In particular this Ph.D. dissertation deals with DWDM optical packet-switched networks. The issue introduces a huge quantity of problems from physical layer up to …
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Very High Speed Coherent Passive Optical Networks
… viability of coherent technology in a passive optical network (PON) setting. Coherent PON offers an alternative to IM/DD that can scale to higher datarates. This thesis focuses on datarates of 200 Gb/s per wavelength for next generation PON. Improving the cost competitiveness of coherent PON is …
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Robustness of bus overlays in optical networks
Local area networks (LANs) nowadays use optical fiber as the medium of communication. This fiber is used to connect a collection of electro-optic nodes which form network clouds. A network cloud is a distribution network that connects several external nodes to the backbone, and often takes the form …
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Comprehensive security strategy for all-optical networks
Optical networking is a powerful means of communication in modem times of high bandwidth demands and high data speeds. While developments in optical networking continue to progress, however, the security implications they create have not yet caught up. In this thesis, we characterize a selection of …
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Passive and active Bragg gratings for optical networks
… and applications of two groups of devices: the optical phase en/decoders and the tunable fibre Bragg gratings based on an S-bending technique. The advantage of an S-bending tuning FBG is that its central wavelength is invariant as the linear strain gradient along the FBG is altered. Two new …
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Integrated Silicon Photonics Switches for Transparent Optical Networks
L'abstract è presente nell'allegato / the abstract is in the attachment
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Cognitive and Autonomous Software-Defined Open Optical Networks
L'abstract è presente nell'allegato / the abstract is in the attachment
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Control architecture of survivable multi-domain optical networks
Optical networks have been widely adopted as the transport network in research industry for years. To better utilize the high speed benefit of optical transport networks, control architecture have become the focus of research in recent years. In this thesis, I have developed a control plane …
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Dynamic Reconfiguration of Network Topology in Optical Networks
Dynamic reconfiguration of the logical topology of a network is generally used to adjust the shape of the network to adhere to changes in traffic. In this thesis the logical topology reconfiguration problem for a WDM network is combined with the multi-path routing of traffic throughout the network. …
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Efficient Design and Management of Reliable Optical Networks
Given the cost of physically modifying the backbone, as well as the relatively slow speed at which core architectures change compared to higher layers, it is important to be able to optimize the network using soft solutions to achieve better performance. A few important aspects of network …
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Operation, administration and maintenance in all optical networks
… bandwidth capacity are of utmost importance. All Optical Networks has emerged as a promising technology to deliver the high capacity demands of current and envisaged future applications.
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