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Polarisation coupling in high birefringence fibresAhmed, S. U. January 1998 (has links)
No description available.
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A new wideband stripline directional coupler using a log spiralQuint, David W., January 1976 (has links)
Thesis--Wisconsin. / Includes bibliographical references (leaves 110-111).
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Electro-optic modulators based on polymeric Y-fed directional couplersZhou, Qingjun 28 August 2008 (has links)
Not available / text
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Electro-optic modulators based on polymeric Y-fed directional couplersZhou, Qingjun, Chen, Ray T. January 2004 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisor: Ray T. Chen. Vita. Includes bibliographical references.
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Modeling, design, and demonstration of orthogonal optical waveguide coupling in common boundary region /Krishnamoorthy, Ashok, January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaf 79). Also available on the Internet.
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Modeling, design, and demonstration of orthogonal optical waveguide coupling in common boundary regionKrishnamoorthy, Ashok, January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaf 79). Also available on the Internet.
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Space division multiple access systems : computational electromagnetic studies of the physical and network layers /Dandekar, Kapil Ramesh, January 2001 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2001. / Vita. Includes bibliographical references (leaves 129-135). Available also in a digital version from Dissertation Abstracts.
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ALL-OPTICAL NONLINEAR WAVEGUIDE DEVICES.GIBBONS, WAYNE MICHAEL. January 1987 (has links)
The properties of all-optical nonlinear waveguide devices are investigated. In particular, the nonlinear directional coupler (NLDC) and nonlinear Mach-Zehnder interferometer (NLMZ) are analyzed using perturbation theory. The perturbation theory provides differential equations that describe the amplitude of the waveguide modes as a function of the propagation distance. To be practical, these waveguide devices require nonlinear phase shifts of π or more. Therefore, the theoretical investigation of these devices emphasizes their fabrication in bulk and multiple-quantum-well (MQW) gallium arsenide (GaAs). For the first time, absorption, carrier diffusion, and thermal effects are included in the theoretical investigation of the NLMZ and NLDC. The nonlinear dependence of the coupling terms, which has been neglected in all previous work, is shown to be significant for semiconductor based NLDC's. The effects of carrier diffusion on the nonlinear response of a GaAs waveguide is demonstrated using a self-consistent numerical method. The effects are heavily dependent on the waveguide geometry, and, therefore, should be included in the analysis of nonlinear semiconductor waveguide devices. However, if the diffusion length is large compared to the mode width, carrier diffusion simplifies the investigation since the nonlinear absorption and index change are uniform across the mode. This important conclusion is used in the models for the NLMZ and NLDC. The theoretical models predict the NLMZ and NLDC should work in bulk and MQW GaAs. To demonstrate that the required nonlinear phase shifts for the NLMZ and NLDC are indeed possible in bulk and MQW GaAs, the first experimental observation of electronic optical bistability in a MQW GaAs strip-loaded waveguide is recounted. This original research illustrated that phase shifts in excess of 2π are possible in MQW GaAs waveguides and, therefore, the future of all-optical waveguide devices in semiconductors is optimistic.
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Analysis of optical propagation in isotropic nonlinear devices by the finite element methodGonzalez Csaszar, Eduardo January 1995 (has links)
No description available.
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Surface roughness and displacement measurements using a fibre optic sensor and neural networksZhang, Kuiwei January 1998 (has links)
No description available.
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