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.
Results
Showing 1 to 11 of 11 for “"Optical data processing"”.
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OPTICAL COMPUTING IN BOLTZMANN MACHINES
… theoretical and experimental work on applying optical processing techniques ot the operation of a Boltzmann machine. A Boltzmann machine is a processor that solves a problem by iteratively optimizing an estimate of the solution. The optimization is done by finding a minimum of an energy surface …
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The use of loop mirrors and chirped fibre Bragg gratings in actively-modelocked fibre lasers
The development of an all-optical communications infrastructure requires appropriate optical switching devices and supporting hardware. This thesis presents several novel fibre lasers which are useful pulse sources for high speed optical data processing and communications. They share several …
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Stable Spatial Solitons In Semiconductor Optical Amplifiers
… the probability of using their interactions in optical data processing, communications etc. Up to now due to the power required to generate the solitons, and the response times of the soliton supporting media, these special waves of nature could not penetrate the applications arena. …
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Naujienų teksto surinkimo ir analizavimo sistemos modeliavimas /
This report presents an automated data scanning and processing system of articles and their comments of the most popular news portals in Lithuania. The main goal of this bachelor thesis was to create a system that collects and compares the data of articles and their comments of portals by …
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Switching and generation of ultrashort pulses using all-fibre devices
… is integral to the construction of any all-optical data processing system. This thesis presents results from a series of experiments centering on the use of the nonlinear-optical loop mirror (NOLM) switch in architectures for the manipulation and generation of ultrashort pulses. Detailed …
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A molecular dynamics visualisation framework
In education, it is often difficult to explain scientific concepts without visualising them using some medium. An extensible and dynamic visualisation tool that provides a real-time simulation of such phenomenon would be a more suitable approach to teaching these concepts. This dissertation …
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Space-variant incoherent optical processing using color
Incoherent optical processing techniques offer superior noise immunity, among other benefits, over coherent optical processing techniques. However, the complex amplitude linearity exhibited by coherent optical systems that provides a natural means for performing operations on complex functions, is …
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Novel Methods of Optical Data Analysis to Assess Radiation Responses in the Tumor Microenvironment
… of quantitatively analyzing window chamber data.</p><p>Here we attempt to address these two problems through (1) the generation of novel optical data processing techniques for the quantification of vascular structural and functional parameters, and (2) the application of these methods to the …
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A CCD image sensor frame grabber and conditioner
Not available
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Photonic RF signal processors
… is to explore the emerging possibilities of processing radiofrequency (RF) or microwave signals in optical domain, which will be a key technology to implement next-generation mobile communication systems and future optical networks. Research activities include design and modelling of novel …