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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Journal ArticleDOI
Broadband, ultrahigh efficiency fiber-to-chip coupling via multilayer nanophotonics
TL;DR: In this article, a multilayer waveguide array tapering into a single waveguide supporting TE-and TM-like modes is proposed to couple light from standard optical fiber to an integrated photonics chip with unprecedented efficiency.
Journal ArticleDOI
Low Power and Compact Silicon Thermo-Optic Switch Based on Suspended Phase Arm Without Support Beams
Xiaodong Wang,Wuxiucheng Wang,Yaqian Li,Xuecheng Fu,Shujing Chen,Francis Smith,Hui Wu,Xiulan Cheng +7 more
TL;DR: In this article, a low power and compact thermo-optic switch based on Mach-Zehnder interferometer structure is demonstrated with the thermal isolation structure fabricated with a new backside etching process.
Grating couplers for Si3N4 waveguides at 900 nm
Ananth Subramanian,Shankar Kumar Selvaraja,Peter Verheyen,Ashim Dhakal,Katarzyna Komorowska,Roel Baets +5 more
TL;DR: In this paper, a 1D grating coupler for silicon nitride wires with an average efficiency of 7 dB in the 890-910 nm wavelength range is presented and compared with the theoretical results.
Proceedings ArticleDOI
Broadband high-efficiency zero-order surface grating coupler for the near- and mid-infrared wavelength ranges
Alejandro Sánchez-Postigo,J. Gonzalo Wangüemert-Pérez,José Manuel Luque-González,Íñigo Molina-Fernández,Pavel Cheben,Carlos Alonso-Ramos,Robert Halir,Jens H. Schmid,Alejandro Ortega-Moñux +8 more
TL;DR: In this paper, the authors proposed a zero-order grating coupler for the near-infrared band, which, making use of a subwavelength-engineered waveguide and a high-index prism, suppress the explicit dependence between the radiation angle and the wavelength.
Proceedings ArticleDOI
Enablement of advanced silicon photonics optical passive library design leveraging silicon based RF passive development methodology
F. E. Ayi-Yovo,Cedric Durand,H. Petiton,S. Jan,Frederic Gianesello,Davide Bucci,Jean-Emmanuel Broquin,D. Gloria +7 more
TL;DR: The combination of FDTD electromagnetic simulations and a Design Of Experiments (DOE) prototyping have been used for optimizing scalable Grating Couplers (GCs) targeting Wavelength-Division Multiplexing applications (WDM).
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.