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Niels Quack

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Related publications (80)

Scalable Nano-Opto-Electromechanical Systems in Silicon Photonics

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

Recent advances in integration of Nano-Opto-Electromechanical Systems in Silicon Photonics enable fundamental photonic operations such as switching, phase shifting or power equalization on-chip. The unique combination of high optical efficiency, low electr ...

IEEE2021

CONTINUOUSLY TUNABLE SILICON PHOTONIC MEMS 2 x 2 POWER COUPLER

Niels Quack, Hamed Sattari

The integration of MEMS transducers in photonic integrated circuits provides opportunities for high efficiency photonic modulation and dynamic routing on-chip. We here present an electrostatically actuated, silicon photonic MEMS 2 x 2 power coupler, fabric ...

IEEE2021

Thermo-mechanical Noise Measurement of Sealed Nanobeams on a Silicon Photonics-MEMS Platform

Niels Quack, Alain Yuji Takabayashi

The thermal motion of a vacuum packaged, suspended nano-beam and nanophotonic waveguide on a silicon photonics-MEMS platform is measured. The resonance frequency and Q-factor of the observed mechanical modes are determined. We also experimentally estimate ...

IEEE2021

Integrated photonic devices in single crystal diamond

Niels Quack, Marcell Kristof Kiss, Teodoro Graziosi, Sichen Mi

The field of diamond photonics is reviewed, with a focus on recent experimental demonstrations of photonic integrated devices in a single crystal diamond. This field leverages the outstanding material properties of diamond with the aim to establish large-s ...

2020

MORPHIC: Programmable photonic circuits enabled by silicon photonic MEMS

Niels Quack, Banafsheh Abasahl, Hamed Sattari, Alain Yuji Takabayashi

In the European project MORPHIC we develop a platform for programmable silicon photonic circuits enabled by waveguide-integrated micro-electro-mechanical systems (MEMS). MEMS can add compact, and low-power phase shifters and couplers to an established sili ...

SPIE-INT SOC OPTICAL ENGINEERING2020

Non-contact polishing of a crystalline layer or substrate by ion beam etching

Niels Quack, Teodoro Graziosi, Sichen Mi

Polishing method comprising the steps of: - providing at least one crystalline layer or substrate, the at least one crystalline layer or substrate extending in at least one plane, and including at least one outer surface and at least one depression extendi ...

2020

Single crystal diamond gain mirrors for high performance vertical external cavity surface emitting lasers

Niels Quack, Grigore Suruceanu, Alexandru Mereuta, Andrei Caliman, Pascal Gallo, Gergely Huszka, Mehdi Naamoun

We report on the design, fabrication and optical performance of gain mirrors in single crystal diamond substrates for vertical external cavity surface emitting lasers (VECSELs). VECSELs have gained attention recently due to their potential for high emissio ...

2020

MEMS for Photonic Integrated Circuits

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

The field of microelectromechanical systems (MEMS) for photonic integrated circuits (PICs) is reviewed. This field leverages mechanics at the nanometer to micrometer scale to improve existing components and introduce novel functionalities in PICs. This rev ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020

Optical element

Niels Quack, Gergely Huszka, Marcell Kristof Kiss

The present invention concerns an optical grating comprising a body defining a first external surface and a second external surface. The first external surface defines a periodic structure comprising a plurality of elongated protrusions and a plurality of ...

2020

Compact broadband suspended silicon photonic directional coupler

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi, Yu Zhang

Directional couplers are extensively used in photonic integrated circuits as basic components for efficient on-chip photonic signal routing. Conventionally, directional couplers are fully encapsulated in the technology's waveguide cladding material. In thi ...

OPTICAL SOC AMER2020

Reactive ion etching of single crystal diamond by inductively coupled plasma: State of the art and catalog of recipes

Niels Quack, Pascal Gallo, Marcell Kristof Kiss, Teodoro Graziosi, Sichen Mi, Mehdi Naamoun

2020

Diffractive optical elements in single crystal diamond

Niels Quack, Marcell Kristof Kiss

We demonstrate the design, fabrication, and experimental characterization of near-field binary phase transmission diffractive optical elements (DOEs) in single crystal diamond. Top-hat and arbitrary pattern DOE beam shapers were numerically optimized using ...

OPTICAL SOC AMER2020

MEMS-Enabled Silicon Photonic Integrated Devices and Circuits

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi, Yu Zhang

Photonic integrated circuits have seen a dramatic increase in complexity over the past decades. This development has been spurred by recent applications in datacenter communications and enabled by the availability of standardized mature technology platform ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020

Compact low loss MEMS phase shifters for scalable field-programmable silicon photonics

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

MEMS offer low power tunability to silicon photonics. However, reported phase shifters lack in range, IL, or linearity. We show pi linear phase shift in compact, 0.2 dB-IL MEMS devices, and demonstrate trade-offs for scalability. (C) 2020 The Author(s) ...

IEEE2020

Freestanding Silicon Photonic Ring and Disk Resonators

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi, Yu Zhang

We report freestanding silicon photonic ring and disk resonators fabricated in a simplified silicon photonics process based on IMEC's iSiPP5OG standard platform that have been released by a custom MEMS post-processing step. Experimental results show high o ...

IEEE2019

Non-contact polishing of single crystal diamond by ion beam etching

Niels Quack, Teodoro Graziosi, Sichen Mi

We propose a non-contact surface finishing method for brittle substrates by ion beam etching and we experimentally demonstrate polishing of (100) single crystal diamond surface. We model and simulate the polishing process, and verify the results experiment ...

2019

Single crystalline diamond diffractive optical elements and method of fabricating the same

Niels Quack, Marcell Kristof Kiss, Teodoro Graziosi

The present invention concerns a single crystalline diamond optical element production method. The method includes the steps of: ‐ providing a single crystalline diamond substrate or layer; ‐ applying a mask layer to the single crystalline diamond substrat ...

2019

Single crystalline diamond part production method for stand alone single crystalline mechanical and optical component production

Niels Quack, Pascal Gallo, Marcell Kristof Kiss, Teodoro Graziosi

The present invention relates to a free-standing single crystalline diamond part and a single crystalline diamond part production method. The method includes the steps of: - providing a single crystalline diamond substrate or layer; - providing a first adh ...

2019

Silicon Photonic Broadband Suspended Directional Coupler

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi, Yu Zhang

We demonstrate a broadband Silicon Photonic directional coupler that is entirely suspended in air. The device has been fabricated in a simplified Silicon Photonics process based on the standard IMEC ISIPP5OG platform, combined with custom post-processing i ...

IEEE2019

High-quality single crystal diamond diffraction gratings fabricated by crystallographic etching

Christian Santschi, Niels Quack, Olivier Martin, Toralf Scharf, Marcell Kristof Kiss, Teodoro Graziosi

We demonstrate a novel method for fabricating single crystal diamond diffraction gratings based on crystallographic etching that yields high-quality diffraction gratings from commercially available diamond plates. Both V-groove and rectangular gratin ...

2019

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