Title :
Buried DFB gratings floating in AlGaAs with low oxygen contamination enable high power and efficiency DFB lasers
Author :
Schultz, C.M. ; Crump, P. ; Maassdorf, A. ; Brox, O. ; Bugge, F. ; Mogilatenko, A. ; Wenzel, H. ; Knigge, S. ; Sumpf, B. ; Weyers, M. ; Erbert, G.
Author_Institution :
Leibniz-Inst. fur Hochstfrequenztechnik, Berlin, Germany
Abstract :
We report a novel design and fabrication technique for buried overgrown DFB gratings floating in AlGaAs. In-situ etching enables low oxygen contamination and results in >; 60% efficient and 10W reliable high power DFB lasers.
Keywords :
III-V semiconductors; aluminium compounds; diffraction gratings; distributed feedback lasers; etching; gallium arsenide; optical fabrication; semiconductor lasers; AlGaAs; DFB laser; buried DFB gratings; distributed feedback laser; in-situ etching; low oxygen contamination; power 10 W; Epitaxial growth; Gratings; Laser feedback; Measurement by laser beam; Optical feedback; Power lasers; Waveguide lasers;
Conference_Titel :
Photonics Society Summer Topical Meeting Series, 2012 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4577-1526-6
DOI :
10.1109/PHOSST.2012.6280785
