Sökning: "grating-coupled surface-emitting laser"

Hittade 5 avhandlingar innehållade orden grating-coupled surface-emitting laser.

  1. 1. High efficiency grating-coupled surface-emitting semiconductor lasers

    Författare :Niklas Eriksson; Chalmers tekniska högskola; []
    Nyckelord :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;

    Sammanfattning : .... LÄS MER

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

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

    Sammanfattning : .... LÄS MER

  4. 3. Grating-Coupled Surface-Emitting Lasers -- Circular and Unstable-Resonator Geometries

    Författare :Sigurgeir Kristjánsson; Chalmers tekniska högskola; []
    Nyckelord :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;

    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. 4. Grating-Coupled Surface-Emitters --- Highly Directional Outcouplers and Spatially Coherent Lasers

    Författare :Niklas Eriksson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with grating-coupled surface-emitting semiconductor lasers. The work is part of a larger effort that aims at developing semiconductor lasers with built-in beam-forming elements, which eliminate the need for external micro-optics. LÄS MER

  7. 5. Fabrication and Characterization of Integration Compatible Semiconductor Lasers

    Författare :Mats Hagberg; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with the fabrication and characterization of integration compatible semiconductor lasers. An extensive investigation of electron-beam lithography (EBL) and chemically assisted ion beam etching (CAIBE) for the fabrication of vertical ultra- high quality facets in GaAs, as well as a systematic characterization of grating coupled surface emitting lasers is presented. LÄS MER