Title :
1.3-μm continuously tunable distributed feedback laser with constant power output based on GaInNAs-GaAs
Author :
Müller, M. ; Gollub, D. ; Fischer, M. ; Kamp, M. ; Forchel, A.
Author_Institution :
Nanoplus Nanosystems & Technol. GmbH, Gerbrunn, Germany
fDate :
7/1/2003 12:00:00 AM
Abstract :
We have investigated tunable distributed-feedback (DFB) lasers based on GaInNAs quantum wells grown by molecular-beam epitaxy. Three-section tunable DFB lasers were fabricated by patterning laterally gain coupled binary superimposed gratings perpendicular to a ridge waveguide. The discrete tuning range covers 24 nm with sidemode suppression ratios of about 35 dB. The lasers were tuned continuously over a range of over 10 nm with a constant power output of 15 mW per facet.
Keywords :
diffraction gratings; distributed feedback lasers; gallium arsenide; indium compounds; laser modes; laser tuning; molecular beam epitaxial growth; quantum well lasers; ridge waveguides; waveguide lasers; 15 mW; GaInNAs; GaInNAs quantum well lasers; GaInNAs-GaAs; constant power output; continuously tunable distributed feedback laser; discrete tuning range; laterally gain coupled binary superimposed gratings; molecular-beam epitaxy; ridge waveguide; three-section tunable DFB lasers; Distributed feedback devices; Gratings; Laser feedback; Laser tuning; Molecular beam epitaxial growth; Optical coupling; Power lasers; Quantum well lasers; Tunable circuits and devices; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.813449
