Title :
Circular-grating surface-emitting DBR laser array for free-space applications
Author :
Fallahi, Mahmoud ; Peyghambarian, N. ; Kasunic, K. ; Dion, M. ; Wasilewski, Z.
Author_Institution :
Opt. Sci. Center, Arizona Univ., Tucson, AZ
fDate :
8/15/1996 12:00:00 AM
Abstract :
The operation of a 2×2 circular-grating surface-emitting distributed Bragg reflector laser array is demonstrated. An InGaAs/GaAs multiquantum well structure with an etch-stop layer is used. A threshold current of ~20 mA is measured for each laser in the array. High power output with accurate wavelength control was obtained
Keywords :
diffraction gratings; distributed Bragg reflector lasers; gallium arsenide; indium compounds; quantum well lasers; semiconductor laser arrays; surface emitting lasers; 2×2 circular-grating surface-emitting distributed Bragg reflector laser array; 20 mA; InGaAs-GaAs; InGaAs/GaAs multiquantum well structure; accurate wavelength control; circular-grating surface-emitting DBR laser array; etch-stop layer; free-space applications; high power output; threshold current;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19961026
