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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Diseño de grating couplers de orden cero de banda ancha y alta eficiencia para el infrarrojo medio
Alejandro Sánchez-Postigo,Juan Gonzalo Wanguemert-Perez,José Manuel Luque-González,Íñigo Molina-Fernández,Pavel Cheben,Robert Halir,Jens H. Schmid,Alejandro Ortega-Moñux +7 more
TL;DR: In this article, the authors proposed a zero-order grating coupler design from the near infrared wavelength range to the mid-infrared one, which is attaining increasing attention because of its sensing applications.
Journal ArticleDOI
High-efficiency and CMOS compatible out-of-plane light emission based on a silicon coupler.
Xiaojuan She,Haiyang Huang,Yingxuan Zhao,Han Liao,Junbo Zhu,Yang Li,Rui Huang,Hongbao Liu,Zhen Sheng,Fuwan Gan +9 more
TL;DR: In this paper , a small-sized, high-efficiency semicircular dielectric grating antenna was proposed for three-dimensional optical interconnections between different decks of integrated photonic circuits.
Journal ArticleDOI
The Edge-Coupler of Fiber-to-Chip with Ultra-Low Coupling Loss Based on Double-Layer Silicon Waveguides
Patent
Optical modulator with reduced size and optical transmitter including the same
TL;DR: In this article, a phase shifter is positioned in at least one of the first and second paths and modulates a phase of one and two optical signals, respectively, which have been received through the first or second paths in response to an electrical signal.
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.