G
Gwenn Ulliac
Researcher at Centre national de la recherche scientifique
Publications - 86
Citations - 1244
Gwenn Ulliac is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Lithium niobate & Photonic crystal. The author has an hindex of 17, co-authored 73 publications receiving 929 citations. Previous affiliations of Gwenn Ulliac include Franche Comté Électronique Mécanique Thermique et Optique Sciences et Technologies & École nationale supérieure de mécanique et des microtechniques.
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Journal ArticleDOI
High aspect ratio lithium niobate ridge waveguides fabricated by optical grade dicing
Nadège Courjal,Blandine Guichardaz,Gwenn Ulliac,Jean-Yves Rauch,Benattou Sadani,Huihui Lu,Maria-Pilar Bernal +6 more
TL;DR: In this article, LiNbO3 ridge waveguides with smooth walls, aspect ratios larger than 500 and side-wall verticality of 88.5 cm were fabricated using optical grade dicing.
Journal ArticleDOI
Enhanced electro-optical lithium niobate photonic crystal wire waveguide on a smart-cut thin film
Huihui Lu,Benattou Sadani,Nadège Courjal,Gwenn Ulliac,Neil Smith,Vincent Stenger,Manuel Collet,Fadi Issam Baida,Maria-Pilar Bernal +8 more
TL;DR: An electro-optically tunable photonic crystal linear cavity etched on a 200 nm lithium niobate waveguide ridge is reported, which has been engineered to work in a slow light configuration so that the Electro-optic effect is 20 times more important than in bulk material.
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Argon plasma inductively coupled plasma reactive ion etching study for smooth sidewall thin film lithium niobate waveguide application
TL;DR: In this paper, a smooth ridge waveguide fabricated on 700 nm thickness thin film lithium niobate (TFLN) is presented, which has been done by developing and optimizing three steps of the technological process, the mask fabrication, the plasma etching, and a final cleaning wet etching step in order to remove the lithium Niobate redeposition on the side walls.
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Three-dimensional waveguide interconnects for scalable integration of photonic neural networks
Johnny Moughames,Xavier Porte,Michael Thiel,Gwenn Ulliac,Laurent Larger,Maxime Jacquot,Muamer Kadic,Daniel Brunner +7 more
TL;DR: In this paper, 3D optical couplers with fractal topology are used to connect large numbers of input and output channels, and functional circuits for discrete spatial filters identical to those used in deep convolutional neural networks are introduced.
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Guidance of surface waves in a micron-scale phononic crystal line-defect waveguide
TL;DR: In this article, the authors reported the direct observation of trapping and guiding of surface-guided elastic waves in a linear defect introduced into a micron-scale phononic crystal, which was used to characterize the different transmission regimes of the one-period wide line defect.