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Showing 1 to 20 of 858 for “"waveguide"”.
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Tapered waveguide lasers
… concerns the design and fabrication of tapered waveguide lasers to allow efficient, high-power diode-pumping and produce diffraction-limited, near-symmetrical output, whilst maintaining a monolithic design compatible with integrated optical circuits. <br/><br/>The design rules required for …
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Polymer Waveguide Amplifiers
Polymer-based optical waveguides are a promising technology for integrating optical links onto standard printed circuit boards as they enable cost-effective manufacturing and assembly as well as offer high bandwidth. The motivation for this work is to address the lack of amplifying components the …
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Analysis of the Suspended H-Waveguide and Other Related Dielectric Waveguide Structures
… propagation characteristics of many dielectric waveguide structures that are of direct importance to the areas of millimeter-wave integrated circuits are studied. A rigorous method of analysis of the propagation constants and the field distributions of a newly developed suspended H-waveguide …
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The Reflecting Beam Waveguide
Made available in DSpace on 2014-12-08T22:23:33Z (GMT). No. of bitstreams: 1 6500800.pdf: 1860168 bytes, checksum: 31b6584130e13c37a7af75830fe9c08d (MD5) Previous issue date: 1964
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Mode-matching analysis for discontinuities in waveguide and application to a waveguide circular polarizer
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Substrate integrated waveguide antenna systems
… been done to the design of substrate integrated waveguide (SIW) components in the mm-wave and microwave range. SIW has many advantages in comparison to conventional waveguides and microstrip lines, such as compact and planar structure, ease of fabrication, low radiation loss, high power handling …
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Gap Waveguide Array Element Filters
… of devices operating at the frequency range. Gap waveguides are a type of waveguide implemented in a periodic metamaterial that offer several critical advantages over standard waveguides, especially with regards to manufacturability. This research provides the design and analysis of three gap …
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Direct UV-written waveguide devices
… a series of experimental studies concerning waveguide structures based on the direct UV and direct grating writing fabrication techniques. The latter approach allows simultaneous definition of waveguide structures and Bragg gratings.<br/><br/>The first result of this work describes the …
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Coupled-waveguide Fabry-Perot resonator
… capability of mode discrimination. A new coupled-waveguide Fabry-Perot resonator made of two parallel waveguides with reflecting mirrors at the ends is proposed for application as narrowband tuned spectral filter in single-mode diode lasers and wavelength demultiplexers. The interference of …
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High-average-power planar waveguide lasers
… towards high-average-power diode-pumped planar waveguide lasers. As a format of the laser active medium, planar waveguides take advantage of their extreme slab geometry, which is compatible with that of high-power diode lasers, offer a great degree of versatility of the pump arrangement, have …
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High-brightness diode-pumped waveguide lasers
… toward high-brightness diode-pumped planar waveguide (PW) lasers. Efficient and compact planar waveguide lasers are made possible by their geometry, which is compatible with that of high-power diode lasers, has very good thermal management characteristics, and delivers high optical gains per …
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Asymptotic methods in applied waveguide problems
… involve the study of scattered fields in waveguides caused by targets of elaborate shape. The complexity of the resulting scattered field depends on the geometry of the scatterer, and exact solutions exist only for the simple geometries. The asymptotic methods developed in this …
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Optical waveguide analysis using transmission lines
Optical fibres have been used as a key medium for telecommunication and networking for more than two decades because in principle they offer sufficient transmission capacity, reaching total rates as high as Tbits/s per fibre. Critical fibre properties such as mode field profiles, single-mode …
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Azimuthal Slots in a Biconical Waveguide
Made available in DSpace on 2014-12-04T21:03:04Z (GMT). No. of bitstreams: 1 5900537.pdf: 2107611 bytes, checksum: b1580c671d647f43d16a2742296b6214 (MD5) Previous issue date: 1958
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Tuning methods in digital waveguide synthesis
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Nonlinear Acoustics in a General Waveguide
Until this present work, the acoustics of waveguides has been divided into two broadly distinct fields---linear acoustics in ducts of complex geometry such as those with curvature or varying width, and nonlinear acoustics restricted to simple geometry ducts without curvature or flare. This PhD …
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