High-power AlGaInAs/GaAs microstack laser bars

Christian Hanke; Lutz Korte; Bruno D. Acklin; Martin Behringer; Gerhard Herrmann; Johann Luft; B. De Odorico; Marcel Marchiano; Jens Wilhelmi

doi:10.1117/12.382106

18 April 2000 High-power AlGaInAs/GaAs microstack laser bars

Christian Hanke, Lutz Korte, Bruno D. Acklin, Martin Behringer, Gerhard Herrmann, Johann Luft, B. De Odorico, Marcel Marchiano, Jens Wilhelmi

Author Affiliations +

Proceedings Volume 3947, In-Plane Semiconductor Lasers IV; (2000) https://doi.org/10.1117/12.382106
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

The maximum useful optical power of laser bars is limited due to thermal and lifetime constraints to typical values of 50 W/cm cw or 120 W/cm qcw. A promising new approach is the so-called microstack laser in which several laseractive areas are integrated vertically in the same monolithic structure. In order to drive these structures in series with high efficiency low-resistance tunnel-junctions have to be realized. By optimizing the MOVPE growth process tunnel- junctions with a specific differential resistivity of 2.5 X 10^-4 (Omega) cm² could be obtained, which are suitable for the monolithic inter-connection of laser structures.

Citation Download Citation

Christian Hanke, Lutz Korte, Bruno D. Acklin, Martin Behringer, Gerhard Herrmann, Johann Luft, B. De Odorico, Marcel Marchiano, and Jens Wilhelmi "High-power AlGaInAs/GaAs microstack laser bars", Proc. SPIE 3947, In-Plane Semiconductor Lasers IV, (18 April 2000); https://doi.org/10.1117/12.382106

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