Search Results - "Winterfeldt, M"

Study of lateral brightness in 20 μm to 50 μm wide narrow stripe broad area lasers by Decker, J., Winterfeldt, M., Fricke, J., Maassdorf, A., Crump, P.

“…We present a design study of high power narrow stripe broad area diode lasers at 9xx-nm with contact stripe widths of 20 μm, 30 μm and 50 μm. The devices are…”
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Limitations to brightness in high power laser diodes by Crump, P., Winterfeldt, M., Decker, J., Ekterai, M., Fricke, J., Maassdorf, A., Erbert, G., Trankle, G.

“…A review is presented on how diagnostic studies, technological and design improvements and novel device configurations have enabled a more than fourfold…”
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The Influence of differential modal gain on the filamentary behavior of broad area diode lasers by Winterfeldt, M., Crump, P., Knigge, S., Maassdorf, A., Erbert, G., Trankle, G.

“…High power diode lasers with low modal gain (~4 cm -1 ), predicted to operate with very low filamentation, are shown to operate with near-field modulation…”
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Assessing the impact of thermal barriers on the thermal lens shape in high power broad area diode lasers by Rieprich, J., Winterfeldt, M., Tomm, J. W., Crump, P.

“…Measured thermal profiles on GaAs broad area diode lasers (P opt > 10 W, λ = 910 nm) were reproduced in FEM simulation, indicating an unforeseen thermal…”
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Experimental and theoretical studies into the limits to peak power in GaAs-based diode lasers by Crump, P., Wenzel, H., Kaul, T., Winterfeldt, M., Platz, R., Erbert, G., Trankle, G.

“…An overview is presented of progress in studies to diagnose and address limits to peak power in high power diode lasers. Key terms in advanced structures…”
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Experimental Investigation of Limits to Slow Axis Beam Quality in High Power Broad Area Diode Lasers by Winterfeldt, M., Crump, P., Wenzel, H., Erbert, G., Trankle, G.

“…An experimental study of factors limiting lateral beam parameter product (BPP) in broad area lasers is presented. BPP is an approximately linear function of…”
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Tilted Wave Lasers: A Way to High Brightness Sources of Light by Shchukin, V, Ledentsov, N, Posilovic, K, Kalosha, V, Kettler, T, Seidlitz, D, Winterfeldt, M, Bimberg, D, Gordeev, N Y, Karachinsky, L Y, Novikov, I I, Shernyakov, Y M, Chunareva, A V, Maximov, M V, Bugge, F, Weyers, M

“…Semiconductor laser diodes are conventionally based on a relatively thin waveguide structure grown epitaxially on a thick single crystalline substrate, wherein…”
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Coherent beam combining of high-power tapered amplifiers by Albrodt, P., Hanna, M., Moron, F., Decker, J., Winterfeldt, M., Blume, G., Crump, P., Georges, P., Lucas-Leclin, G.

“…We describe the coherent beam combining of three high-power tapered laser amplifiers seeded by a DFB laser at λ = 976 nm, and demonstrate a combined power of…”
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