Sökning: "grating coupled surface emitters"

Hittade 3 avhandlingar innehållade orden grating coupled surface emitters.

1. 1. 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

3. 2. 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

4. 3. 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