Theses and Dissertations from UMD

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New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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    Monolithic In-Plane Tunable Optical Filter
    (2008-08-11) McGee, Jonathan Adam; Ghodssi, Reza; Electrical Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    This thesis presents the development of a Micro-Electro-Mechanical System (MEMS) monolithic in-plane tunable optical filter in both Indium Phosphide and Silicon. By placing one mirror of a waveguide-based Fabry-Perot interferometer on an electrostatically-actuated beam, a tunable filter is constructed. This is the first demonstration of a waveguide-coupled MEMS tunable optical filter in any material system. Filters with a tuning range of 40 nm from a wavelength 1550 nm with a linewidth of 35 nm are demonstrated. Future work will concentrate on improving the filter's optical characteristics, limited by etch-induced facet roughness, and integration with active photonic devices.