Journal ArticleDOI
Compact efficient broadband grating coupler for silicon-on-insulator waveguides.
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TLDR
A high-efficiency broadband grating coupler for coupling between silicon-on-insulator (SOI) waveguides and optical fibers and the size of the grooves is optimized numerically.Abstract:
We have designed a high-efficiency broadband grating coupler for coupling between silicon-on-insulator (SOI) waveguides and optical fibers. The grating is only 13 µm long and 12 µm wide, and the size of the grooves is optimized numerically. For TE polarization the coupling loss to single-mode fiber is below 1 dB over a 35-nm wavelength range when using SOI with a two-pair bottom reflector. The tolerances to fabrication errors are also calculated.read more
Citations
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Photonic device design flow : from mask layout to device measurement
TL;DR: This thesis illustrated several mask drawing approaches and showed the drawing steps of two masks in detail and described two automated experimental setups, fiber-to-fiber and fiber array, in detail, and included various measurement results to show the capabilities of these two stations.
Single-photon manipulation in Nanophotonic Circuits
TL;DR: In this article, a single-photon router is demonstrated on a chip with embedded quantum dots, where the phase difference between the arms of the interferometer is controlled electrically.
Dissertation
Étude et développement d'une plateforme photonique moyen infrarouge sur silicium : vers des capteurs intégrés
TL;DR: In this paper, a technologie developpee dans ces travaux est basee sur des guides carres a saut d'indice en Si₀,₆Ge₄,Geµ,µ enterres dans le Si, afin d'obtenir des circuits compactes and a faibles pertes.
Journal ArticleDOI
Optical mode conversion based on silicon-on-insulator material Ψ-junction coupler and multimode interferometer
TL;DR: In this article, a spatial optical mode conversion supporting three modes based on two Ψ -junction couplers and two multi-mode interference coupler (MMIs) is presented.
Proceedings ArticleDOI
Suspended mid-infrared fiber-to-chip grating couplers for SiGe waveguides
TL;DR: In this article, a novel grating coupler structure was proposed to achieve high fiber-to-chip efficiency, in which the grating is locally suspended in air, and the suspended structure thicknesses were jointly optimized with grating parameters.
References
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Journal Article
Electromagnetic Optimization by Genetic Algorithms
TL;DR: This book describes numerous applications of genetic algorithms to the design and optimization of various low- and high-frequency electromagnetic components and provides a comprehensive list of the up-to-date references applicable to electromagneticdesign problems.
Journal ArticleDOI
Ultra-low loss photonic integrated circuit with membrane-type photonic crystal waveguides
TL;DR: The combination of an efficient two-stage coupling scheme and utilization of ultra-long (up to 2mm) photonic crystal waveguides reduces the uncertainty in determining the loss figure to 3dB/cm.
Journal ArticleDOI
An out-of-plane grating coupler for efficient butt-coupling between compact planar waveguides and single-mode fibers
Dirk Taillaert,Wim Bogaerts,Peter Bienstman,Thomas F. Krauss,P. Van Daele,Ingrid Moerman,Steven Verstuyft,K. De Mesel,Roel Baets +8 more
TL;DR: In this paper, an out-of-plane coupler for butt-coupling from fiber to compact planar waveguides is proposed based on a short second-order grating or photonic crystal, etched in a waveguide with a low-index oxide cladding.
Journal ArticleDOI
Low loss mode size converter from 0.3 [micro sign]m square Si wire waveguides to singlemode fibres
TL;DR: In this article, a novel integrated mode size converter for single-mode Si wire waveguides is presented, which is constructed with two-dimensional tapered Si waveguide and overlaid high-index polymer waveguide.
Journal ArticleDOI
Optical modelling of photonic crystals and VCSELs using eigenmode expansion and perfectly matched layers
Peter Bienstman,Roel Baets +1 more
TL;DR: In this paper, a modeling approach for photonic crystal structures and vertical-cavity surface-emitting lasers (VCSELs) is presented based on vectorial eigenmode expansion combined with perfectly matched layer (PML) boundary conditions.