Hochleistungsdiodenlaser hoher spektraler Strahldichte mit geneigtem BRAGG–Gitter als Modenfilter (α–DFB–Laser) (Volume 5) (English shop)

Preview

Table of Contents, Datei (72 KB)
Extract, Datei (260 KB)

This work addresses the optimization of high-power distributed feedback diode lasers for wavelengths in the range of 1 µm. A Bragg grating is integrated into the lasers, the grating grooves of which are tilted by a small angle with respect to the facet normal (a-DFB lasers) and which acts as both a lateral and a longitudinal mode filter.

In addition to two newly developed modelling methods for a-DFB lasers, the adapted fabrication technology, including the necessary packaging technology, is explained. The modelling-supported systematic experimental investigations of the influence of the design parameters — such as resonator length, contact stripe width, reflection coefficients, grating period and groove depth of the integrated Bragg grating — on the laser properties lead to optimal laser configurations.