Forschungsverbund Berlin E.v.

Ferdinand-braun-institut Ggmbh, Leibniz-institut Fur Höchstfrequenztechnik

Jonathan Decker

Paul Crump

Götz Erbert

Goetz Erbert

Joerg Fricke

Jörg Fricke

The invention relates to a laser diode () which has at least one active layer () which is arranged within a resonator () and is operatively connected to a outcoupling element (), and further at least one contact layer () for coupling charge carriers into the active layer (), wherein the resonator () comprises at least a first section () and a second section (), wherein the second section () comprises a plurality of separate resistor elements () having a specific electrical resistivity greater than the specific electrical resistivity of the regions () between adjacent resistor elements (), wherein a width (W) of the resistor elements () along a longitudinal axis (X) of the active layer () is less than 20 &#x3bc;m, and a projection of the resistor elements () on the active layer () along the first axis (Z) overlap with at least 10% of the active layer ().

Laser diode with improved electrical conduction properties

Laser diode comprises an active layer; a waveguiding region at least partially surrounding the active layer; a rear facet; a front facet designed for outcoupling laser radiation, wherein the active layer extends at least partially along a first axis (X) between the rear facet and the front facet; and a grating operatively connected to the waveguiding region, wherein the grating comprises a plurality of bridges and trenches designed such that an average increase of a coupling parameter P for the plurality of trenches along the grating is non-zero, wherein the coupling parameter P of a trench is defined by the equation, wherein dis a distance of the trench to the active layer, w is a width of the trench and &#x394;n is the refractive index difference between a refractive index of the trench and a refractive index of a material surrounding the trench.

Laser diode with distributed feedback and method for producing

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Berlin, Germany

Jonathan Decker