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Visar resultat 1 - 5 av 24 avhandlingar som matchar ovanstående sökkriterier.
1. Study on electroabsorption modulators and grating couplers for optical interconnects
Sammanfattning : Decades of efforts have pushed the replacement of electrical interconnects by optical links to the interconnects between computers, racks and circuit boards. It may be expected that optical solutions will further be used for inter-chip and intra-chip interconnects with potential benefits in bandwidth, capacity, delay, power consumption and crosstalk. LÄS MER
2. Multifunctional Waveguide Grating Couplers for Integrated Optics
Sammanfattning : This thesis describes a novel waveguide component in integrated optics called a multifunctional grating coupler. It couples light in or out of optical waveguides and provides additional optical functions such as beam splitting, arbitrary focusing, polarization sensing, and wavelength separation (wavelength division demultiplexing). LÄS MER
3. Horizontal Slot Waveguides for Silicon Photonics Back-End Integration
Sammanfattning : This thesis presents the development of integrated silicon photonic devices. These devices are compatible with the present and near future CMOS technology. High-khorizontal grating couplers and waveguides are proposed. LÄS MER
4. Grating-Coupled Surface-Emitting Lasers -- Circular and Unstable-Resonator Geometries
Sammanfattning : This thesis deals with research in the field of grating-coupled surface-emitting lasers. The emphasis has been to study the modal behavior of lasers with two different resonator geometries: circular resonators and tapered unstable-resonators. LÄS MER
5. Design and Characterization of SiN-based integrated optical components for Wavelength Division Multiplexing
Sammanfattning : To follow the trend of the data traffic and to limit the size of the hyperscale data centers, communication solutions offering small footprint, low cost and low power consumption are needed. Optical interconnects used in data centers are mostly short reach (approximately 100 m) based on GaAs-based 850 nm vertical-cavity surface emitting lasers (VCSELs) and OM4 multimode fibers (MMF). LÄS MER