Journal ArticleDOI
Compact efficient broadband grating coupler for silicon-on-insulator waveguides.
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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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Journal ArticleDOI
High-efficiency focusing grating coupler with optimized ultra-short taper
TL;DR: In this paper, a non-uniform grating coupler was proposed to couple light into or off silicon photonic chips for large-scale silicon-to-silicon photonic integration.
Book ChapterDOI
TiO 2 Based Micro-Ring Resonator as Near Infrared Laser Line Filter: Numerical Simulation
TL;DR: In this paper, the authors presented finite-difference time domain simulation of TiO2 core add-drop micro-ring resonator as near-infrared laser line filter.
Journal ArticleDOI
Photonic nano-device for optical signal processing
TL;DR: In this article, the authors review two main classes of micro/nanostructure photonic devices, to provide the kinds of functions for optical signal processing, including low power-consumption, cost-efficient, compact size, and reliability.
Journal ArticleDOI
Nanostructured silicon delivers unprecedented optical devices
Robert Halir,Alejandro Ortega-Moñux,Pavel Cheben,G. Wanguemert-Perez,Jens H. Schmid,Íñigo Molina-Fernández +5 more
TL;DR: In this article, the authors present a new silicon optical waveguide device that offers high performance and ultra-broad bandwidth operation with a very compact footprint, which is based on a nanostructured silicon multimode interference coupler showing the input and output (right) light waves.
Dissertation
Silicon nanocrystals, photonic structures and optical gain
TL;DR: In this article, the authors investigated fundamental optical properties of SiNCs and designed and prepared a photonic crystal with enhanced light extraction efficiency and explored a possibility of enhancing optical gain of light-emitting SiNC by combining them with a two-dimensional photonic lattice.
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.