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.
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Showing 1 to 7 of 7 for “"optically tunable"”.
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Optically tunable external cavity ring laser
… fabrication, and characterization of a novel optically tunable external cavity ring laser is described here. The external cavity laser (ECL) utilizes a semiconductor optical amplifier as the gain medium in a ring configuration, and a surface photonic crystal incorporating a superstrate layer …
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Dynamically programmable surfaces for high-speed optical modulation and detection
… optical tweezers. Currently available electro-optically tunable components are often bulky, inefficient, and have limited operation speeds. This thesis describes the development of a compact, high-speed, electro-optic spatial light modulator (SLM) architecture based on two-dimensional arrays of …
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Porous silicon as a platform for gradient refractive index photonics
… (TiO2) by atomic layer deposition, forming optically tunable discrete and continuous PSiO2/TiO2 composite GRINs.
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Writing and characterisation methods for UV-photosensitivity based devices and their applications
… biological sensing. In addition the design of an optically tunable Mach-Zehnder based multiwavelength filter is introduced. The discovery of a Type IA grating type through overexposure of hydrogen loaded standard and Boron-Germanium co-doped fibres strengthened the assumption of …
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Automated wavelength recovery for silicon photonics
… and error-free operation up to 20Gb/s. A thermo-optically tunable microdisk modulator with Low power modulation (1 If/bit) at a data rate of 13-Gb/s, a 5.8-dB extinction ratio, a 1.22-dB insertion loss and a record-low thermal tuning (4.9-[mu].W/GHz) of a high-speed modulator is achieved. We …
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Processing Approaches for Maintaining Multifunctionality in Advanced Thermoplastic Composites
Multifunctional composites typically consist of a functional additive imparting multiple functionalities to a polymer matrix. The production of these composites is not trivial, as the functionality of the particles must be retained during production, and the polymer matrix and particle interactions …
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Nonlinear Photonics in Waveguides for Telecommunications
… telecommunication systems. Similarly, an optically tunable frequency shift was observed using this system. Pulses experienced a full spectral bandwidth shift at low peak pump powers when utilizing the Raman-induced frequency shift and slow light effects. Numerical simulations of the …