Title :
Singlemode InAs/InP quantum dash distributed feedback lasers emitting in 1.9 μm range
Author :
Hein, S. ; Somers, A. ; Kaiser, W. ; Höfling, S. ; Reithmaier, J.P. ; Forchel, A.
Author_Institution :
Univ. Wurzburg, Wurzburg
Abstract :
Laterally coupled, complex distributed feedback lasers based on InAs/ InGaAs/InAlGaAs/InP quantum dash-in-a-well layers emitting in the 1.9 mum wavelength range were fabricated. Total CW powers above 25 mW at room temperature and sidemode suppression ratios of more than 35 dB are demonstrated, which makes the devices promising for gas sensing applications.
Keywords :
aluminium compounds; distributed feedback lasers; gallium arsenide; indium compounds; quantum dot lasers; quantum well lasers; InAs-InGaAs-InAlGaAs-InP; complex distributed feedback lasers; gas sensing applications; quantum dash distributed feedback lasers; sidemode suppression ratios;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20080110
