Search Results - "Biesenbach, J."

Fiber coupled laser diode reliability: impact of feedback on diode lifetime and failure modes by Kissel, H., Leonhauser, B., Tomm, J. W., Hempel, M., Unger, A., Biesenbach, J.

“…We present results of an extensive study on broad area lasers (BALs) with different antireflection (AR) coatings in the wavelength range from 780 nm to 1020…”
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Accelerated Degradation of High Power Diode Lasers Caused by External Optical Feedback Operation by Kissel, H., Leonhauser, B., Tomm, J. W., Hempel, M., Biesenbach, J.

“…We present results of investigations on high power broad area lasers in the spectral range between 780nm and 1060nm with different antireflection coatings on…”
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Lasers for materials processing: specifications and trends by Du, K., Biesenbach, J., Ehrlichmann, D., Habich, U., Jarosch, U., Klein, J., Loosen, P., Niehoff, J., Wester, R.

“…An overview is given of the types of lasers dominating the field of laser materials processing. The most prominent lasers in this field are the CO sub(2) and…”
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High brightness fiber coupled modular diode laser platform by Biesenbach, J.

“…High-power and high-brightness fiber coupled diode laser devices are in demand in two main commercial applications. The largest is for solid-state laser…”
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Alkaline phosphatase predicts relapse in chronic hepatitis C patients with end-of-treatment response by Bodlaj, Gerd, Hubmann, Rainer, Saleh, Karim, Stojakovic, Tatjana, Biesenbach, Georg, Berg, Jörg

“…AIM: To investigate relapse predictors in chronic hepatitis C (CHC) patients with end-of-treatment response (ETR), after pegylated interferon-α (PegIFN-α) and…”
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High power T-Bars with narrow in-plane far-field angle by Lauer, C., Bachmann, A., Gronninger, G., Kreuter, P., Furitsch, M., Grossmann, V., Leisner, M., Sporrer, K., Kissel, H., Stoiber, M., Biesenbach, J., Konig, H., Strauss, U.

“…We present recent results on 976nm mini-bars with superior beam divergence at highest power levels tailored for optimized fiber coupling. The emitters (4mm x…”
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Device deformation during low-frequency pulsed operation of high-power diode bars by Gerhardt, Axel, Weik, Fritz, QuocTran, Tien, Tomm, Jens W., Elsaesser, Thomas, Biesenbach, Jens, Müntz, Holger, Seibold, Gabriele, Biermann, Mark L.

“…Thermal tuning rates of single emitters in “cm-bar” high-power diode laser arrays are analyzed. We find these tuning rates to consist of purely thermal and…”
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Tailored 9xx nm laser bars for fiber coupling by Konig, H., Lauer, C., Gronninger, G., Hein, S., Gomez-Iglesias, A., Furitsch, M., Maric, J., Straussa, U., Kissel, H., Wolf, P., Biesenbach, J.

“…Status on low fill factor 9xx nm laser bars will be presented. Conversion efficiency peaks above 66% and slow axis divergence of less than 7° was reached up to…”
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Relaxation of packaging-induced strains in AlGaAs -based high-power diode laser arrays by Tien, Tran Quoc, Gerhardt, Axel, Schwirzke-Schaaf, Sandy, Tomm, Jens W., Müntz, Holger, Biesenbach, Jens, Oudart, Myriam, Nagle, Julien, Biermann, Mark L.

“…We monitor the mechanical strain evolution with typical use in the quantum well of AlGaAs ∕ GaAs -based high-power diode laser arrays (cm bars) by…”
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High efficient and reliable 10 mm diode laser bars at 940nm by Konig, H., Philippens, M., Brick, P., Luft, J., Huke, S., Stoiber, M., Biesenbach, J., Lorenzen, D., Schroder, M., Hennig, P.

“…In this paper we present improvements on 940 nm high power diode lasers. For 10 mm bars maximum wallplug efficiencies of 65% are demonstrated using 2 mm…”
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Diode laser platform for multi-kW applications by Brand, T., Unger, A., Koehler, B., Wolf, P., Beczkowiak, A., Biesenbach, J.

“…We report on developments in scalable high-power and high-brightness direct diode-laser systems for applications in fiber-laser pumping and material…”
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New wavelengths for high-power diode lasers as an enabling technology by Harrop, N., Neukum, J., Koehler, B., Wolf, P., Flament, M., Kissel, H., Brand, T., Biesenbach, J.

“…High-power diode lasers (HPDL) benefit from a high wall-plug efficiency, high optical power, sound reliability & long lifetime, low investment costs and a…”
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Lasers for materials processing : specifications and trends: Applications of laser technology in materials processing by DU, K, BIESENBACH, J, EHRLICHMANN, D, HABICH, U, JAROSCH, U, KLEIN, J, LOOSEN, P, NIEHOFF, J, WESTER, R

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Low fill factor diode laser bars with high brilliance from 808 nm to 1020 nm for fibre coupling by Fehse, R., Konig, H., Gronninger, G., Lauer, C., Strauss, U., Kissel, H., Puschmann, M., Biesenbach, J.

“…In recent years high brilliance semiconductor diode lasers are gaining attraction for the industrial laser market. The emerging generation of multi kilowatt…”
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