Title :
Robust Design by Antioptimization for Parameter Tolerant GaAs/AlOx High Contrast Grating Mirror for VCSEL Application
Author :
Chevallier, Christyves ; Genty, Frederic ; Fressengeas, Nicolas ; Jacquet, Joel
Author_Institution :
Lab. Mater. Opt., Photonique et Syst., Supelec, Metz, France
Abstract :
A GaAs/AlOx high contrast grating structure design which exhibits a 99.5% high reflectivity for a 425 nm large bandwidth is reported. The high contrast grating (HCG) structure has been designed in order to enhance the properties of mid-infrared VCSEL devices by replacing the top Bragg mirror of the cavity. A robust optimization algorithm has been implemented to design the HCG structure not only as an efficient mirror but also as a robust structure against the imperfections of fabrication. The design method presented here can be easily adapted for other HCG applications at different wavelengths.
Keywords :
Bragg gratings; III-V semiconductors; alumina; gallium arsenide; laser cavity resonators; mirrors; optical design techniques; reflectivity; surface emitting lasers; Bragg mirror; GaAs-AlOx; antioptimization; laser cavity; midinfrared VCSEL devices; parameter tolerant high contrast grating mirror; reflectivity; robust optical design; robust optimization algorithm; Algorithm design and analysis; Bandwidth; Gratings; Mirrors; Optimization; Robustness; Vertical cavity surface emitting lasers; High contrast grating (HCG) mirror; mid-infrared VCSEL; parameter tolerant; robust design;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2282871
