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Editorial Cuvillier

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Editorial Cuvillier

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Analysis and mitigation of the factors limiting the efficiency of high power distributed feedback diode lasers

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Analysis and mitigation of the factors limiting the efficiency of high power distributed feedback diode lasers (Volumen 27) (Tienda española)

Christoph Matthias Schultz (Autor)

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Indice, PDF (52 KB)

ISBN-13 (Impresion) 9783954045211
ISBN-13 (E-Book) 9783736945210
Idioma Deutsch
Numero de paginas 388
Laminacion de la cubierta mate
Edicion 1 Aufl.
Serie Innovationen mit Mikrowellen und Licht. Forschungsberichte aus dem Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik
Volumen 27
Lugar de publicacion Göttingen
Lugar de la disertacion Berlin
Fecha de publicacion 08.10.2013
Clasificacion simple Tesis doctoral
Area Física
Palabras claves Physik der kondensierten Materie, distributed feedback, power conversion efficiency, high power diode lasers
Descripcion

High-power, high-efficiency, wavelength-stabilized broad area (BA) diode lasers are promising devices for industrial applications. They can be used, for example, for pumping narrow absorption bands in gain media of solid-state and fiber lasers as well as for power scaling by means of dense spectral beam combining.

This thesis focuses on the analysis and mitigation of the factors limiting the efficiency of high-power distributed feedback (DFB) diode lasers. In particular, it will be shown how a power conversion efficiency in the 60 %-range can be achieved from 10 W-class 100 μm stripe DFB-BA lasers – values close to those of state-of-the-art Fabry-Pérot (FP) BA lasers. For the first time world-wide, newly developed DFB-BA lasers achieve 12 W continuous mode optical output power with 62 % peak power conversion efficiency and 58 % at 10 W, respectively. Wavelength stabilization is demonstrated from threshold to 15 A with a spectral width below 0.8 nm containing 95 % of the emitted power. The factors limiting the efficiency of DFB-BA lasers compared to state-of-the-art 10 W-class FP-BA lasers have been identified and as a result largely eliminated.