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Design, simulation and analysis of laterally-longitudinally non-uniform edge-emitting GaAs-based diode lasers

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Design, simulation and analysis of laterally-longitudinally non-uniform edge-emitting GaAs-based diode lasers (Volumen 73) (Tienda española)

Jan-Philipp Koester (Autor)


Lectura de prueba, PDF (290 KB)
Indice, PDF (34 KB)

ISBN-13 (Impresion) 9783736978829
ISBN-13 (E-Book) 9783736968820
Idioma Inglés
Numero de paginas 170
Laminacion de la cubierta mate
Edicion 1.
Serie Innovationen mit Mikrowellen und Licht. Forschungsberichte aus dem Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik
Volumen 73
Lugar de publicacion Göttingen
Lugar de la disertacion TU Berlin
Fecha de publicacion 19.09.2023
Clasificacion simple Tesis doctoral
Area Informática
Ingeniería eléctrica
Palabras claves dual-wavelength laser, tapered laser, high-brightness diode laser, ridge-waveguide laser, broad-area laser,device simulation, traveling-wave laser model, modal analysis, lateral mode filter, spatial hole burning, thermal lensing, Dual-Wellenlängen-Laser, konischer Laser, Hochleistungsdiodenlaser, Ridge-Wellenleiter-Laser, Breitbandlaser, Gerätesimulation, Wanderwellenlasermodell, Modalanalyse, Lateral-Mode-Filter, räumliches Lochbrennen, thermische Linsenbildung
URL para pagina web externa https://www.fbh-berlin.de/publikationen/dissertationen

Edge-emitting quantum-well diode lasers based on GaAs combine a high conversion efficiency, a wide range of emission wavelengths covering a span from 630 nm to 1180 nm, and the ability to achieve high output powers. The often used longitudinal-invariant Fabry-Pérot-type resonators are easy to design but often lead to functionality or performance limitations.
In this work, the application of laterally-longitudinally non-uniform resonator configurations is explored as a way to reduce unwanted and performance-limiting effects. The investigations are carried out on existing and entirely newly developed laser designs using dedicated simulation tools. These include a sophisticated time-dependent laser simulator based on a traveling-wave model of the optical fields in the lateral-longitudinal plane and a Maxwell solver based on the eigenmode expansion method for the simulation of passive waveguides. Whenever possible, the simulation results are compared with experimental data. Based on this approach, three fundamentally different laser types are investigated:
• Dual-wavelength lasers emitting two slightly detuned wavelengths around 784 nm out of a single aperture
• Ridge-waveguide lasers with tapered waveguide and contact layouts that emit light of a wavelength of around 970 nm
• Broad-area lasers with slightly tapered contact layouts emitting at 910 nm
The results of this thesis underline the potential of lateral-longitudinal non-uniform laser designs to increase selected aspects of device performance, including beam quality, spectral stability, and output power.