High-efficiency fiber-to-chip grating couplers realized using an advanced CMOS-compatible Silicon-On-Insulator platform
Diedrik Vermeulen,Shankar Kumar Selvaraja,Peter Verheyen,Guy Lepage,Wim Bogaerts,Philippe Absil,D. Van Thourhout,Gunther Roelkens +7 more
TL;DR: A new generation of Silicon-on-Insulator fiber-to-chip grating couplers which use a silicon overlay to enhance the directionality and thereby the coupling efficiency is presented.
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Abstract: A new generation of Silicon-on-Insulator fiber-to-chip grating couplers which use a silicon overlay to enhance the directionality and thereby the coupling efficiency is presented. Devices are realized on a 200mm wafer in a CMOS pilot line. The fabricated fiber couplers show a coupling efficiency of −1.6dB and a 3dB bandwidth of 80nm.
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Citations
•Dissertation
Design, fabrication and characterization of resonant waveguide grating based optical biosensors
Nazmul Hossain
- 01 Jan 2015
TL;DR: The European Commission (Grant Agreement 258238 EU FP7-ICT PHAST-ID project) and Science Foundation Ireland (Irish Photonic Integration Centre (IPIC) Award 12/RC/2276) as mentioned in this paper
Subwavelength index engineered surface grating coupler with sub-decibel efficiency for 220-nm silicon-on-insulator waveguides.
Daniel Benedikovic,Pavel Cheben,Jens H. Schmid,Dan-Xia Xu,Boris Lamontagne,Shurui Wang,Jean Lapointe,Robert Halir,Alejandro Ortega-Moñux,Siegfried Janz,Milan Dado +10 more
TL;DR: This work reports on a grating coupler with sub-decibel experimental coupling efficiency using a single etch process in a standard 220-nm silicon-on-insulator (SOI) platform, and demonstrates a subwavelength metamaterial refractive index engineered nanostructure with backside metal reflector.
Analytical and Numerical Investigation of Silicon Photonic 2D Grating Couplers with a Waveguide-to-Grating Shear Angle
Galina Georgieva,Klaus Petermann +1 more
- 01 Aug 2018
TL;DR: In this paper, the dependence of the radiation pattern on the grating geometry is represented by a 2D diffraction condition and numerical results from full-3D time-domain simulations are used to discuss issues concerning the coupling loss optimization.
Free-Space Applications of Silicon Photonics: A Review
TL;DR: In this article , the authors review the recent advances in beam steering technologies based on silicon photonics, including optical phased arrays, focal plane arrays, and dispersive grating diffraction.
Long-Working-Distance Grating Coupler for Integrated Optical Devices
TL;DR: In this paper, a novel grating coupler design is presented with its experimental demonstration, which can focus the outcoming light upward without the need for a lens or additional fabrication steps.
References
Compact efficient broadband grating coupler for silicon-on-insulator waveguides.
TL;DR: 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.
High efficiency Silicon-on-Insulator grating coupler based on a poly-Silicon overlay
TL;DR: A high efficiency broadband grating coupler for Silicon-On-Insulator waveguides was designed and the device layout is compatible with standard CMOS technology processing.
Focused-Ion-Beam Fabrication of Slanted Grating Couplers in Silicon-on-Insulator Waveguides
TL;DR: In this article, an efficient grating coupler for coupling light between optical fibers and silicon-on-insulator waveguides was designed and fabricated by direct etching with a focused ion beam using iodine gas and an alumina hard mask.
Efficient tapering to the fundamental quasi-TM mode in asymmetrical waveguides
Diedrik Vermeulen,Karel Van Acoleyen,Samir Ghosh,Shankar Kumar Selvaraja,Wout De Cort,Nebiyu Adello Yebo,Elewout Hallynck,Katrien De Vos,Peter Debackere,Pieter Dumon,Wim Bogaerts,Gunther Roelkens,Dries Van Thourhout,Roel Baets +13 more
- 01 Jan 2010
TL;DR: In this paper, the authors investigated the tapering problem of the fundamental quasi-TM mode in thin asymmetrical waveguides and proposed three nonadiabatic taper solutions, a focusing grating coupler, a lensed taper and a discontinuous taper, which circumvent these mode conversions.
High efficiency diffractive grating coupler based on transferred silicon nanomembrane overlay on photonic waveguide
Tapas Kumar Saha,Weidong Zhou +1 more
TL;DR: In this paper, a new type of high efficiency grating coupler based on single crystalline Si nanomembrane overlay and stacking was designed for the purpose of coupling light between single mode fibres and nanophotonic waveguides, and for the coupling between multiple photonic interconnect layers for compact three-dimensional vertical integration.
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