Title :
Coherent InGaAs/GaAs laser arrays with laterally coupled distributed feedback gratings
Author :
Müller, M. ; Kamp, M. ; Deubert, S. ; Reithmaier, J.P. ; Forchel, A.
Author_Institution :
Dept. of Appl. Phys., Univ. of Wurzburg, Germany
Abstract :
A new approach for coherent positive index guided distributed feedback lasers array using laterally coupled gratings is demonstrated. The device fabrication requires no regrowth which makes this concept suitable for a variety of material systems. The lasers are based on an InGaAs/GaAs single quantum well structure emitting around 980 nm with high sidemode suppression ratio of more than 50 dB.
Keywords :
III-V semiconductors; diffraction gratings; distributed feedback lasers; gallium arsenide; indium compounds; quantum well lasers; semiconductor laser arrays; 980 nm; InGaAs-GaAs; InGaAs/GaAs single quantum well structure; coherent InGaAs/GaAs laser arrays; device fabrication; high sidemode suppression ratio; laterally coupled distributed feedback gratings;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040103
