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    Computer-generated holograms for free-space optical interconnects

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    Author
    Coleman, Christopher Lamar, 1971-
    Issue Date
    1998
    Keywords
    Physics, Optics.
    Advisor
    Gmitro, Arthur F.
    
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    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    This dissertation describes an investigation into the use of computer generated holograms to implement free-space optical interconnects. Computer generated holograms are discussed in terms of their theory of operation, design principles, fabrication techniques, optical performance, and sources of error. To motivate the research, discussion of an optoelectronic computing module is included; the device uses computer generated holograms to implement large-fanout optical interconnects. The emphasis of this dissertation is not on a specific application, rather it is focused on understanding the abilities and limitations of computer generated holograms. New contributions are made in the area of hologram design, both individual and multifaceted elements. These design techniques were built into a computer aided design tool (SPIDER 3.0), which was developed to promote the use of computer generated holograms. Hologram fabrication techniques and optical performance are also carefully characterized. Measurements show that performance is poorer than what is expected. Several significant sources of error are identified in the design and fabrication of computer generated holograms, and these effects are shown to explain most of the measured results. The dissertation concludes that computer generated holograms are currently limited by errors in fabrication and in the approximate diffraction theories employed in the design process. While the optical performance of the holograms is not as good as expected, the results are shown to be adequate for successful use in real applications.
    Type
    text
    Dissertation-Reproduction (electronic)
    Degree Name
    Ph.D.
    Degree Level
    doctoral
    Degree Program
    Graduate College
    Optical Sciences
    Degree Grantor
    University of Arizona
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