Title :
Surface-emitting tapered unstable resonator laser with integrated focusing grating coupler comparing linear and trumpet shaped taper
Author :
Kristjansson, S. ; Eriksson, N. ; Modh, P. ; Larsson, A.
Author_Institution :
Dept. of Microelectron., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
Here we compare the performance of InGaAs SQW tapered unstable resonator lasers (TURL) with linear-shaped-taper with lasers that have a trumpet-shaped-taper that follows the shape of the optical mode as it expands while propagating in the laser resonator. The laser resonator is defined by two first-order feedback gratings and is completely separated from the grating outcoupler.
Keywords :
III-V semiconductors; diffraction gratings; gallium arsenide; indium compounds; laser cavity resonators; laser stability; optical couplers; quantum well lasers; surface emitting lasers; InGaAs; InGaAs SQW tapered unstable resonator lasers; first-order feedback gratings; grating outcoupler; integrated focusing grating coupler; linear-shaped-taper; optical mode shape; surface-emitting tapered unstable resonator laser; trumpet shaped taper; trumpet-shaped-taper; Gratings; Laser feedback; Laser modes; Laser stability; Laser theory; Optical coupling; Optical feedback; Optical resonators; Power lasers; Surface emitting lasers;
Conference_Titel :
Semiconductor Laser Conference, 2000. Conference Digest. 2000 IEEE 17th International
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-6259-4
DOI :
10.1109/ISLC.2000.882277
