P
Philippe Helin
Researcher at Katholieke Universiteit Leuven
Publications - 17
Citations - 879
Philippe Helin is an academic researcher from Katholieke Universiteit Leuven. The author has contributed to research in topics: Photonics & Silicon nitride. The author has an hindex of 10, co-authored 16 publications receiving 712 citations.
Papers
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Journal ArticleDOI
Low-Loss Singlemode PECVD Silicon Nitride Photonic Wire Waveguides for 532–900 nm Wavelength Window Fabricated Within a CMOS Pilot Line
Ananth Subramanian,Pieter Neutens,Ashim Dhakal,Roelof Jansen,Tom Claes,Xavier Rottenberg,Frédéric Peyskens,Shankar Kumar Selvaraja,Philippe Helin,B. DuBois,K. Leyssens,Simone Severi,Paru Deshpande,Roel Baets,P. Van Dorpe +14 more
TL;DR: In this paper, the dependence of loss on wire width, wavelength, and cladding is discussed in detail, and it is shown that cladded multimode and singlemode waveguides show a loss well below 1 dB/cm in the 532-900 nm wavelength range.
Journal ArticleDOI
Expanding the Silicon Photonics Portfolio With Silicon Nitride Photonic Integrated Circuits
Abdul Rahim,Eva Ryckeboer,Ananth Subramanian,Stéphane Clemmen,Bart Kuyken,Ashim Dhakal,Ali Raza,Artur Hermans,Muhammad Muneeb,Sören Dhoore,Yanlu Li,Utsav D. Dave,Peter Bienstman,Nicolas Le Thomas,Gunther Roelkens,Dries Van Thourhout,Philippe Helin,Simone Severi,Xavier Rottenberg,Roel Baets +19 more
TL;DR: In this paper, the advantages and challenges associated with these two material platforms are discussed, and the case of dispersive spectrometers, which are widely used in various silicon photonic applications, is presented.
Journal ArticleDOI
Visible-to-near-infrared octave spanning supercontinuum generation in a silicon nitride waveguide.
Haolan Zhao,Bart Kuyken,Stéphane Clemmen,François Leo,Ananth Subramanian,Ashim Dhakal,Philippe Helin,Simone Severi,Edouard Brainis,Gunther Roelkens,Roel Baets +10 more
TL;DR: The generation of an octave spanning supercontinuum covering 488-978 nm (at -30 dB) is demonstrated for the first time on-chip for biophotonic applications and frequency metrology.
Proceedings ArticleDOI
Silicon photonics: Silicon nitride versus silicon-on-insulator
Roel Baets,Ananth Subramanian,Stéphane Clemmen,Bart Kuyken,Peter Bienstman,Nicolas Le Thomas,Gunther Roelkens,Dries Van Thourhout,Philippe Helin,Simone Severi +9 more
TL;DR: The relative benefits of Silicon nitride and silicon photonics are discussed, which provide an alternative moderate-index-contrast system that is manufacturable in the same CMOS environment.
Patent
A method for sealing a micro-cavity
TL;DR: In this article, a method for sealing a cavity, preferably a cavity wherein a MEMS or NEMS device is located, is described, where a membrane layer is deposited on top of a sacrificial layer, after which release holes are etched in the membrane layer and a release step is performed wherein at least a portion of the sacrificial layers is removed through the release holes, to form the cavity.