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Proceedings Paper

High power semiconductor disk laser with monolithically integrated pump lasers
Author(s): Wolfgang Diehl; Tony Albrecht; Peter Brick; Michael Furitsch; Stefan Illek; Stephan Lutgen; Ines Pietzonka; Johann Luft; Wolfgang Stolz
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Paper Abstract

Semiconductor disk lasers have attracted a lot of interest in the last few years due to high output power combined with good beam quality and possible wavelength engineering. One of the disadvantages is the need for external optical pumping by edge-emitting semiconductor lasers that increase packaging effort and cost. Therefore, semiconductor disk lasers with monolithically integrated pump lasers would be of high interest. We report on a novel design and experimental realization to monolithically integrate pump lasers with a semiconductor disk laser in a one-step epitaxial design. By careful design of integrated pump lasers and stacking sequence, it is possible to efficiently excite vertical emitter areas with different mesa sizes. First results are shown at 1060 nm emission wavelength with high output power out of mesa diameters of 100 μm to 400 μm. The devices can be conveniently characterized on a wafer level using dry-etched pump laser facets. In pulsed operation 1.7W out of a 100 μm diameter mesa and 2.5W out of a 200 μm diameter mesa are demonstrated. Additionally, more than 0.6W in cw operation using a 400 μm structure were achieved. In summary, an innovative approach for truly monolithic integration of a semiconductor disk laser with pump lasers has been pioneered.

Paper Details

Date Published: 8 May 2008
PDF: 7 pages
Proc. SPIE 6997, Semiconductor Lasers and Laser Dynamics III, 699711 (8 May 2008); doi: 10.1117/12.781018
Show Author Affiliations
Wolfgang Diehl, Osram Opto Semiconductors GmbH (Germany)
Philipps Univ. Marburg (Germany)
Tony Albrecht, Osram Opto Semiconductors GmbH (Germany)
Peter Brick, Osram Opto Semiconductors GmbH (Germany)
Michael Furitsch, Osram Opto Semiconductors GmbH (Germany)
Stefan Illek, Osram Opto Semiconductors GmbH (Germany)
Stephan Lutgen, Osram Opto Semiconductors GmbH (Germany)
Ines Pietzonka, Osram Opto Semiconductors GmbH (Germany)
Johann Luft, Osram Opto Semiconductors GmbH (Germany)
Wolfgang Stolz, Philipps Univ. Marburg (Germany)

Published in SPIE Proceedings Vol. 6997:
Semiconductor Lasers and Laser Dynamics III
Krassimir P. Panajotov; Marc Sciamanna; Angel A. Valle; Rainer Michalzik, Editor(s)

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