Publications by Niels Quack | EPFL Graph Search

Related publications (77)

Integrated silicon photonic MEMS

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

Silicon photonics has emerged as a mature technology that is expected to play a key role in critical emerging applications, including very high data rate optical communications, distance sensing for autonomous vehicles, photonic-accelerated computing, and ...

SPRINGERNATURE2023

2022 Roadmap on integrated quantum photonics

Niels Quack, Christophe Marcel Georges Galland

Integrated photonics will play a key role in quantum systems as they grow from few-qubit prototypes to tens of thousands of qubits. The underlying optical quantum technologies can only be realized through the integration of these components onto quantum ph ...

IOP Publishing Ltd2022

Diamond diffractive optics-recent progress and perspectives

Niels Quack, Marcell Kristof Kiss, Gergely Huszka, Sichen Mi

Diamond is an exceptional material that has recently seen a remarkable increase in interest in academic research and engineering since high-quality substrates became commercially available and affordable. Exploiting the high refractive index, hardness, las ...

WALTER DE GRUYTER GMBH2021

Efficient Low‐Voltage Phase Shifter with Inkjet‐Printed Liquid Crystal on a Silicon on Insulator Platform

Niels Quack, Alain Yuji Takabayashi

A new electro‐optic phase shifter device architecture consisting of two lateral rail electrodes in doped silicon close to a waveguide with a liquid crystal cladding is demonstrated. Starting with a completed silicon photonics wafer of IMEC's iSiPP50G platf ...

Wiley2025

Volatile and non-volatile nano-electromechanical switches fabricated in a CMOS-compatible silicon-on-insulator foundry process

Niels Quack, Alain Yuji Takabayashi

Nanoelectromechanical (NEM) switches have the advantages of zero leakage current, abrupt switching characteristics, and harsh environmental capabilities. This makes them a promising component for digital computing circuits when high energy efficiency under ...

2025

Silicon photonic microelectromechanical systems add-drop ring resonator in a foundry process

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

Photonic add-drop filters are crucial components for the implementation of wavelength division multiplexing (WDM) in fiber-optic communication systems. The recent progress in photonic integration has shown the potential to integrate photonic add-drop filte ...

SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS2022

Single crystal diamond micro-disk resonators by focused ion beam milling

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

We report on single crystal diamond micro-disk resonators fabricated in bulk chemical vapor deposition diamond plates (3 mm x 3 mm x 0.15 mm) using a combination of deep reactive ion etching and Focused Ion Beam (FIB) milling. The resulting structures are ...

2018

Integrated 4-terminal single-contact nanoelectromechanical relays implemented in a silicon-on-insulator foundry process

Niels Quack, Alain Yuji Takabayashi

Integrated nanoelectromechanical (NEM) relays can be used instead of transistors to implement ultra-low power logic circuits, due to their abrupt turn off characteristics and zero off-state leakage. Further, realizing circuits with 4-terminal (4-T) NEM rel ...

Royal Soc Chemistry2023

Silicon Photonic MEMS Phase-Shifter

Niels Quack, Hamed Sattari, Teodoro Graziosi, Marcell Kristof Kiss

We present a design for an analog phase shifter based on Silicon Photonic MEMS technology. The operation principle is based on a two-step parallel plate electrostatic actuation mechanism to bring a vertically movable suspended tapered waveguide in a first ...

2019

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

Wafer-level hermetically sealed silicon photonic MEMS

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

The emerging fields of silicon (Si) photonic micro-electromechanical systems (MEMS) and optomechanics enable a wide range of novel high-performance photonic devices with ultra-low power consumption, such as integrated optical MEMS phase shifters, tunable c ...

CHINESE LASER PRESS2022

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

Niels Quack, Alexandru Mereuta, Andrei Caliman, Pascal Gallo, Grigore Suruceanu, 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

32 x 32 silicon photonic MEMS switch with gap-adjustable directional couplers fabricated in commercial CMOS foundry

Niels Quack

We report on a 32 x 32 silicon photonic micro-electro-mechanical-system (MEMS) switch with gap-adjustable directional couplers. The switch is fabricated on 200-mm silicon-on-insulator wafers in a commercial complementary metal-oxide-semiconductor (CMOS) fo ...

SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS2021

Temperature-dependent properties of single crystal diamond nanopillars

Niels Quack, Marcell Kristof Kiss

Diamonds possess significant hardness and durability; however, any attempt to deform them typically leads to brittle fracture. In this study, we comprehensively characterize nanoscale diamond at elevated temperatures, using a combination of experimental an ...

Elsevier BV2025

MEMS for Photonic Integrated Circuits

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

Large-scale broadband digital silicon photonic switches with vertical adiabatic couplers

Niels Quack

Large-scale photonic switches are essential devices for energy-and cost-efficient optical communication networks in cloud and data-intensive computing. Silicon photonics is an attractive platform for high-density photonic integrated circuits with low manuf ...

Optical Soc Amer2016

Low-Power Electro-Optic Actuators for Large-Scale Programmable Photonic Circuits

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

Photonic integrated circuits are becoming increasingly more complex, especially with the emergence of programmable photonic circuits. These require many tunable photonic elements, such as electro-optic phase shifters and tunable couplers. We will discuss o ...

IEEE2021

Silicon photonic MEMS variable optical attenuator

Niels Quack, Hamed Sattari, Teodoro Graziosi

We present a design for an on-chip MEMS-actuated Variable Optical Attenuator (VOA) based on Silicon Photonic MEMS technology. The VOA consists of 30 individual mechanically movable MEMS cantilevers, suspended over an integrated, 1 mu m wide bus waveguide, ...

SPIE-INT SOC OPTICAL ENGINEERING2018

A Bistable Silicon Photonic Mems Phase Switch For Nonvolatile Photonic Circuits

Niels Quack, Alain Yuji Takabayashi

Silicon photonic circuits are rapidly growing in complexity and spreading to new applications. However, programmable circuits consume much power and require active electrical interfaces. For the first time, we demonstrate a nonvolatile photonic MEMS pi-pha ...

IEEE2022

Fully reconfigurable MEMS-based second-order coupled-resonator optical waveguide (CROW) with ultra-low tuning energy

Niels Quack, Alain Yuji Takabayashi

Integrated microring resonators are well suited for wavelength-filtering applications in optical signal processing, and cascaded microring resonators allow flexible filter design in coupledresonator optical waveguide (CROW) configurations. However, the imp ...

Optica Publishing Group2023