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
Silicon photonic on-chip spatial heterodyne Fourier transform spectrometer exploiting the Jacquinot’s advantage
Thi Thuy Duong Dinh,David González-Andrade,Miguel Montesinos-Ballester,Lucas Deniel,Bertrand Szelag,Xavier Le Roux,Eric Cassan,Delphine Marris-Morini,Laurent Vivien,Pavel Cheben,Aitor V. Velasco,Carlos Alonso-Ramos +11 more
TL;DR: In this paper, the authors propose and experimentally demonstrate an SHFTS implementing a wide-area light collection system simultaneously feeding an array of 16 interferometers, with an input aperture as large as 90m×60m formed by a two-way-fed grating coupler.
Proceedings ArticleDOI
Characterization of silicon-on-insulator waveguide chirped grating for coupling to a vertical optical fiber
Xia Chen,Chao Li,Hon Ki Tsang +2 more
TL;DR: In this article, the performance of linearly chirped waveguide grating with a uniform grating for coupling light to a vertical fiber was compared experimentally and the results showed that the linearlychirped grating reduced reflection and coupling loss by 2 dB.
Journal ArticleDOI
Boundary effects in finite size plasmonic crystals: focusing and routing of plasmonic beams for optical communications.
M. I. Benetou,J. S. Bouillard,Paulina Segovia,Wayne Dickson,Benn C. Thomsen,Polina Bayvel,Anatoly V. Zayats +6 more
TL;DR: By controlling the boundary shape, the size and the excitation beam parameters, directional control of propagating plasmonic modes and their behaviour such as angular beam splitting, focusing power and beam width can be efficiently achieved and provides a promising route for robust and alignment-independent integration of plasMonic crystals with optical communication components.
Journal ArticleDOI
Simulations of nanograting-assisted light coupling in GaN planar waveguide
R. Dylewicz,R. Dylewicz,R. Dylewicz,Richard A. Hogg,R. J. Airey,Regina Paszkiewicz,P. Bientsman,Sergiusz Patela +7 more
TL;DR: In this paper, a simulation tool based on the eigenmode expansion method and advanced boundary conditions provided a rigorous model of 400-nm-period grating couplers, where coupling efficiency, reflection and transmission characteristics of device were calculated.
Journal ArticleDOI
Dual-band fiber-chip grating coupler in a 300 mm silicon-on-insulator platform and 193 nm deep-UV lithography
David González-Andrade,Diego Perez-Galacho,Miguel Montesinos-Ballester,Xavier Le Roux,Eric Cassan,Delphine Marris-Morini,Pavel Cheben,Nathalie Vulliet,Stephane Monfray,Frederic Boeuf,Laurent Vivien,Aitor V. Velasco,Carlos Alonso-Ramos +12 more
TL;DR: In this paper, a dual-band grating coupler fabricated using 193 nm deep-ultraviolet lithography for 10 Gbit symmetric passive optical networks is presented. But the efficiency of the coupler is limited by the wavelength-dependent radiation angle.
References
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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.
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Low loss mode size converter from 0.3 [micro sign]m square Si wire waveguides to singlemode fibres
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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.