Robust design of Si/Si3N4 high contrast grating mirror for mid-infrared VCSEL application

Abstract : A Si/Si3N4 high contrast grating mirror has been designed for a VCSEL integration in mid-infrared (λ = 2.65 µm). The use of an optimization algorithm which maximizes a VCSEL mirror quality factor allowed the adjustment of the grating parameters while keeping large and shallow grating pattern. The robustness with respect to fabrication error has been enhanced thanks to a precise study of the grating dimension tolerances. The final mirror exhibits large high reflectivity bandwidth with a polarization selectivity and several percent of tolerance on the grating dimensions.
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Submitted on : Wednesday, May 2, 2012 - 5:04:26 PM
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Christyves Chevallier, Nicolas Fressengeas, Frédéric Genty, Joel Jacquet. Robust design of Si/Si3N4 high contrast grating mirror for mid-infrared VCSEL application. Optical and Quantum Electronics, Springer Verlag, 2012, 44 (3), pp.169-174. ⟨10.1007/s11082-012-9578-8⟩. ⟨hal-00693474⟩

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