L
Lennart Wevers
Publications - 14
Citations - 364
Lennart Wevers is an academic researcher. The author has contributed to research in topics: Photonics & Photonic integrated circuit. The author has an hindex of 5, co-authored 14 publications receiving 243 citations.
Papers
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Journal ArticleDOI
Low-Loss Si3N4 TriPleX Optical Waveguides: Technology and Applications Overview
Chris G. H. Roeloffzen,Marcel Hoekman,Edwin J. Klein,Lennart Wevers,R. B. Timens,Denys Marchenko,Dimitri Geskus,Ronald Dekker,Andrea Alippi,Robert Grootjans,Albert van Rees,Ruud M. Oldenbeuving,Jörn P. Epping,Rene Heideman,Kerstin Worhoff,Arne Leinse,Douwe Geuzebroek,Erik Schreuder,Paulus W. L. van Dijk,Ilka Visscher,Caterina Taddei,Youwen Fan,Caterina Taballione,Yang Liu,David Marpaung,Leimeng Zhuang,Meryem Benelajla,Klaus J. Boller +27 more
TL;DR: An overview of the most recent developments and improvements to the low-loss TriPleX Si3N4 waveguide technology is presented in this article, which can be combined to design complex functional circuits, but more important are manufactured in a single monolithic flow to create a compact photonic integrated circuit.
Journal ArticleDOI
Flip-Chip Integration of InP to SiN Photonic Integrated Circuits
Michael Theurer,Martin Moehrle,A. Sigmund,Karl-Otto Velthaus,Ruud M. Oldenbeuving,Lennart Wevers,F. M. Postma,Richard Mateman,Frederik Schreuder,Dimitri Geskus,Kerstin Worhoff,Ronald Dekker,Rene Heideman,Martin Schell +13 more
TL;DR: In this article, a hybrid InP to SiN TriPleX integration interface with a novel alignment technique and its application to complex photonic integrated circuits is presented, where vertical alignment stops are used to simplify the alignment process and allow for array integration with the same simplicity as for single dies.
Proceedings ArticleDOI
Ultra-low-power stress-optics modulator for microwave photonics
Jörn P. Epping,Denys Marchenko,Arne Leinse,Richard Mateman,Marcel Hoekman,Lennart Wevers,Edwin J. Klein,Chris G. H. Roeloffzen,Matthijn Dekkers,Rene Heideman +9 more
TL;DR: In this paper, the authors demonstrate the first stress-optic modulator in a silicon nitride-based waveguide platform (TriPleX) in the telecommunication C-band.
Journal ArticleDOI
Flip-Chip Integration of InP and SiN
Michael Theurer,Martin Moehrle,A. Sigmund,Karl-Otto Velthaus,Ruud M. Oldenbeuving,Lennart Wevers,F. M. Postma,Richard Mateman,Frederik Schreuder,Dimitri Geskus,Kerstin Worhoff,Ronald Dekker,Rene Heideman,Martin Schell +13 more
TL;DR: In this paper, the authors present an interface for hybrid flip-chip integration of InP-based laser sources to silicon-nitride-based photonic platforms, which enables efficient high optical power coupling over a wide temperature range.
Proceedings Article
Broadband True Time Delay Microwave Photonic Beamformer for Phased Array Antennas
Ilka Visscher,Chris G. H. Roeloffzen,Caterina Taddei,Marcel Hoekman,Lennart Wevers,Robert Grootjans,Paul Kapteijn,Dimitri Geskus,Andrea Alippi,Ronald Dekker,Ruud M. Oldenbeuving,Jörn P. Epping,R. B. Timens,Edwin J. Klein,Arne Leinse,Paul van Dijk,Rene Heideman +16 more
TL;DR: In this paper, the authors present two types of analog photonic links (APLs) to achieve true time delay (TTD) beamforming, based on hybrid optical integration of TriPleX and InP chips.