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 13 of 13 for “"Dense wavelength division multiplexing"”.
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Numerical modelling of advanced modulation formats and WDM transmission
… this work focuses on numerical optimisation of dense wavelength division multiplexing (DWDM) system design. We employ advanced spectral domain filtering techniques and carrier pulse reshaping. We then apply these optimisation methods to investigate spectral and temporal domain characteristics of …
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Commercialization of microelectromechanical systems (MEMS)
… specifically in telecommunications for dense wavelength division multiplexing (DWDM) and optical switching. This thesis examines various models of dynamic technology adoption and explores how they apply to MEMS technology. Furthermore, by way of historical comparison to the development …
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Opto-VLSI based WDM multifunction device
… of research interest. The implementation of Dense-Wavelength Division Multiplexing (DWDM) optical fiber transmission systems has the potential to meet this demand. However, crucial components of DWDM networks – add/drop multiplexers, filters, gain equalizers as well as interconnects between …
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Performance of multichannel fiber optic parametric amplifier
… capacity. In fiber optic communication systems, Dense Wavelength Division Multiplexing (DWDM) is very popular in which multiple optical signals at various wavelengths are combined and transmitted through a single fiber. DWDM technology provides a cost effective deployment strategy. One of the key …
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High-performance switching architectures for optical networks
… huge bandwidth provided by optical fibers and Dense Wavelength Division Multiplexing (DWDM) technology, the electronic switching nodes in the core of the network represent the bottleneck in terms of speed and capacity for the overall network. For this reason DWDM technology must be exploited …
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Phase Noise Characterization of a Mode-Locked Quantum-Dot Coherent Optical Frequency Comb Source Laser
… signals on each of the 100 channels in a dense wavelength division multiplexing (DWDM) system. Each of these channels require an individual optical carrier frequency to be generated from a discrete high-performance tunable laser. These arrays of discrete lasers are an expensive component …
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Photonic neural networks for signal equalization in optical fiber transmission
… frequencies, complex modulation formats, and Dense Wavelength Division Multiplexing increases the transmitted bandwidth, but simultaneously worsens linear and nonlinear effects accumulated during fiber propagation. These create distortions in the propagated sequence, introducing the need for …
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Silicon-photonics for VLSI systems
… the fundamental tradeoffs of electrical wires; dense wavelength division multiplexing (DWDM) - where multiple data channels share a single waveguide or fiber to greatly extend bandwidth density - and the potential to combine at chip-scale with a very large scale integrated (VLSI) CMOS electrical …
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Multi-domain crankback operation for IP/MPLS & DWDM networks
… fibre-optic backbone networks based upon dense wavelength division multiplexing (DWDM) solutions as well as advanced layer 2/3 IP multiprotocol label switching (MPLS) and Ethernet technologies as well. A range of networking control protocols has also been developed to implement service …
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End-to-end provisioning in multi-domain/multi-layer networks
… technologies. At the Layer 1 fiber-optic level, dense wavelength division multiplexing (DWDM) has seen fast growth in long-haul backbone/metro sectors. At the Layer 1.5 level, revamped next-generation SONET/SDH (NGS) has gained strong traction in the metro space, as a highly flexible sub-rate' …
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Photonic integrated circuit for the manipulation of coherent optical combs
… has reached capacity with current generation dense wavelength division multiplexing (DWDM) systems fully occupying the low absorption region of optical fibre from 1530 nm to 1625 nm (the C and L bands). This is both due to an increase in the number of users worldwide and existing users …
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Liquid Crystal Optics For Communications, Signal Processing And 3-d Microscopic Imaging
… and repeatable. An extension of this VOA for wavelength tunable operation is also shown in this dissertation. A LC spatial light modulator (SLM) that uses a photo-sensitive high impedance electrode whose impedance can be varied by controlling the light intensity incident on it, is used in a …
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Dynamically reconfigurable long-reach PONs for high capacity access
… capacity through the use of time- and wavelength division multiplexing (TWDM) which serve to exploit the large bandwidth capabilities offered by single-mode fibre. In this project, reconfigurable TWDM LR-PON architectures which dynamically exploit the wavelength domain are proposed, …