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Showing result 1 - 5 of 53 swedish dissertations matching the above criteria.

2. 1. Grating-Coupled Surface-Emitting Lasers -- Circular and Unstable-Resonator Geometries

   Author : Sigurgeir Kristjánsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; laser beam focusing; grating coupled surface emitters; simulation; unstable resonator lasers; surface-emitting lasers; integrated optics; gratings; circular gratings; BPM simulations; laser resonators; semiconductor lasers; optical planar waveguide couplers; electron beam lithography;

   Abstract : 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. READ MORE

4. 2. Focusing circular grating-coupled surface-emitting lasers

   Author : Sigurgeir Kristjánsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; integrated optics; semiconductor lasers; grating coupled surface emitters; laser resonators; circular gratings;

   Abstract : .... READ MORE

5. 3. Modal Dynamics of Vertical-Cavity Surface-Emitting Lasers

   Author : Johan Gustavsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transverse modes; noise; modeling; Semiconductor laser; dynamics; vertical-cavity surface-emitting laser;

   Abstract : In this work, a comprehensive dynamic model has been developed for simulating a novel semiconductor laser type, referred to as the Vertical-Cavity Surface-Emitting Laser (VCSEL). The high-speed behavior was simulated and compared to experiments, where excellent agreement was found. READ MORE

6. 4. High efficiency grating-coupled surface-emitting semiconductor lasers

   Author : Niklas Eriksson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; diffraction grating; chemically assisted ion beam etching; blazed grating; integrated optics; multilayer substrate reflector; semiconductor laser; grating-coupled surface-emitting laser; electron-beam lithography; waveguide grating coupler; nenofabrication;

   Abstract : .... READ MORE

7. 5. Vertical Cavity Surface Emitting Lasers for Access Network Applications

   Author : Emma Söderberg; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; highly strained InGaAs; single mode emission; Vertical Cavity Surface Emitting Lasers VCSELs ; inverted surface relief; high speed modulation;

   Abstract : .... READ MORE