Title :
Efficiency-optimized 973nm high power broad area DFB lasers with overgrown aluminium-free gratings for peak power conversion of 63%
Author :
Schultz, C.M. ; Crump, P. ; Wenzel, H. ; Knigge, S. ; Brox, O. ; Maassdorf, A. ; Bugge, F. ; Erbert, G.
Author_Institution :
Leibniz-Inst. fur Hochstfrequenztechnik, Ferdinand-Braun-Inst., Berlin, Germany
Abstract :
Here, 970nm DFB-BA lasers with 100μm stripe width are demonstrated that achieve for the first time a peak CW efficiency ηc = 63% at 5.5W and a peak CW power of >; 12W at 15°C. In summary, high power DFB-BA lasers with record power conversion efficiency of 63% have been demonstrated for the first time.
Keywords :
III-V semiconductors; diffraction gratings; distributed feedback lasers; gallium arsenide; indium compounds; power conversion; semiconductor lasers; InGaP-AlGaAs; continuous wave power conversion; high power broadarea DFB lasers; overgrown aluminium-free gratings; power 5.5 W; size 100 mum; temperature 15 degC; wavelength 973 nm;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5942580
