Theoretical and experimental investigations of the limits to the maximum output power of laser diodes

H. Wenzel, P. Crump, A. Pietrzak, X. Wang, G. Erbert and G. Tränkle

Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany

Published in:
New J. Phys., vol. 12, no. 085007 (2010).
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Abstract:
The factors that limit both the continuous wave (CW) and the pulsed output power of broad-area laser diodes driven at very high currents are investigated theoretically and experimentally. The decrease in the gain due to self-heating under CW operation and spectral holeburning under pulsed operation, as well as heterobarrier carrier leakage and longitudinal spatial holeburning, are the dominant mechanisms limiting the maximum achievable output power.

PACS:
42.55.Px Semiconductor lasers; laser diodes
42.60.Pk Continuous operation

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