Efficiency-optimized 973nm high power broad area DFB lasers with overgrown aluminium-free gratings for peak power conversion of 63%
C.M. Schultz, P. Crump, H. Wenzel, S. Knigge, O. Brox, A. Maaßdorf, F. Bugge and G. Erbert
Published in:
European Conf. on Lasers and Electro-Optics and the European Quantum Electronics Conf. (CLEO Europe - EQEC 2011), Munich, Germany, May 22-26, paper CB7.3-WED (2011).
Abstract:
High power 973nm DFB-broad area lasers with record power conversion efficiency of 63% and peak power >12W are demonstrated for the first time, based on thin, low strength aluminium-free overgrown grating regions.
Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
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