Journal ArticleDOI
Compact efficient broadband grating coupler for silicon-on-insulator waveguides.
Reads0
Chats0
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
More filters
Journal ArticleDOI
Apodized Waveguide Grating Couplers for Efficient Coupling to Optical Fibers
TL;DR: In this paper, a shallow-etched diffractive waveguide grating coupler was proposed to achieve efficient coupling between single-mode fiber and a silicon-on-insulator optical waveguide.
Journal ArticleDOI
Low-Loss Singlemode PECVD Silicon Nitride Photonic Wire Waveguides for 532–900 nm Wavelength Window Fabricated Within a CMOS Pilot Line
Ananth Subramanian,Pieter Neutens,Ashim Dhakal,Roelof Jansen,Tom Claes,Xavier Rottenberg,Frédéric Peyskens,Shankar Kumar Selvaraja,Philippe Helin,B. DuBois,K. Leyssens,Simone Severi,Paru Deshpande,Roel Baets,P. Van Dorpe +14 more
TL;DR: In this paper, the dependence of loss on wire width, wavelength, and cladding is discussed in detail, and it is shown that cladded multimode and singlemode waveguides show a loss well below 1 dB/cm in the 532-900 nm wavelength range.
Journal ArticleDOI
Silicon photonic devices and integrated circuits
TL;DR: In this article, the authors present a review of silicon photonic programs and main achievements during recent years, including single-drive push-pull silicon Mach-Zehnder modulators, hybrid silicon/III-V lasers and silicon nitride assisted polarization rotators.
Journal ArticleDOI
Bridging the gap between optical fibers and silicon photonic integrated circuits.
Wissem Sfar Zaoui,Andreas Kunze,Wolfgang Vogel,Manfred Berroth,Jörg Butschke,Florian Letzkus,Joachim N. Burghartz +6 more
TL;DR: A rigorous approach for designing a highly efficient coupling between single mode optical fibers and silicon nanophotonic waveguides based on diffractive gratings based on cost-effective CMOS process flow is presented.
Journal ArticleDOI
Waveguide grating coupler with subwavelength microstructures.
Robert Halir,Pavel Cheben,Siegfried Janz,Dan-Xia Xu,Íñigo Molina-Fernández,Juan Gonzalo Wanguemert-Perez +5 more
TL;DR: A silicon waveguide-fiber grating coupler that uses a subwavelength microstructure to achieve a continuously variable grating strength yet can be fabricated using only a single etch step is proposed.
References
More filters
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.