Publications de Hamed Sattari | EPFL Graph Search

Design rules for frequency conversion in periodically poled thin film lithium niobate waveguides

Camille Sophie Brès, Davide Grassani, Hamed Sattari, Nikolay Balakleyskiy, Christian André Clément Lafforgue, Yesim Koyaz

SPIE Society of Photo-Optical Instrumentation Engineers2024

Integrated silicon photonic MEMS

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

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

MORPHIC: MEMS enhanced silicon photonics for programmable photonics

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

We present our work in the European project MORPHIC to extend an established silicon photonics platform with low-power and non-volatile micro-electromechanical (MEMS) actuators to demonstrate large-scale programmable photonic integrated circuits (PICs). ...

SPIE-INT SOC OPTICAL ENGINEERING2022

Wafer-level hermetically sealed silicon photonic MEMS

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

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

Compact Integrated Silicon Photonic Mems Power Coupler For Programmable Photonics

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

Programmable photonics promise a plethora of optical functions while at the same time reducing the time and costs of photonic integrated circuit (PIC) development. One primary bottleneck for development of these systems is the difficulty in increasing comp ...

IEEE2022

Programmable silicon photonic circuits powered by MEMS

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

We present our work to extend silicon photonics with MEMS actuators to enable low-power, large scale programmable photonic circuits. For this, we start from the existing iSiPP50G silicon photonics platform of IMEC, where we add free-standing movable wavegu ...

SPIE-INT SOC OPTICAL ENGINEERING2022

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

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

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

Smart Slit Assembly Employing Continuously Tunable MEMS Shutter

Benedikt Guldimann, Niels Quack, Gergely Huszka, Hamed Sattari, Anton Lagosh

We present the concept and detailed design of a Smart Slit Assembly for next generation spectrometers, and we experimentally demonstrate operation of an individual 221 mu m x 111 mu m smart slit channel employing a MEMS actuated shutter to continuously mod ...

SPIE-INT SOC OPTICAL ENGINEERING2021

Silicon Photonic MEMS Add-Drop Filter

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

We demonstrate a compact add-drop filter based on a MEMS ring resonator implemented in IMEC's iSiPP50G silicon photonics platform. The device exhibits a port extinction of 20 dB and a port isolation of > 50 dB, upon actuation range of 0 V to 27 V. ...

IEEE2021

Broadband Compact Single-Pole Double-Throw Silicon Photonic MEMS Switch

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

Photonic Integrated Circuits (PICs) benefit from the technology advances in the semiconductor industry to incorporate an ever-increasing number of photonic components on a single chip to create large-scale photonic integrated circuits. We here present a br ...

Institute of Electrical and Electronics Engineers2021

Mems Shutter Based Variable Optical Attenuator Integrated With Large Core Multimode Rectangular Waveguides

Benedikt Guldimann, Niels Quack, Gergely Huszka, Hamed Sattari, Anton Lagosh

We present the concept and design, and we report on the experimental performance of a broadband Variable Optical Attenuator (VOA) for integration with large-core rectangular multimode waveguides. Operation of an individual 221 mu m x 111 mu m optical waveg ...

IEEE2021

Low-Voltage Silicon Photonic Mems Switch With Vertical Actuation

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

We present a vertically movable silicon photonic MEMS switch realized in IMEC's standard silicon photonics platform followed by a dedicated postprocessing for MEMS release. The device has six optical ports, which enable four switching configurations with a ...

IEEE2021

Silicon photonic microelectromechanical phase shifters for scalable programmable photonics

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

Programmable photonic integrated circuits are emerging as an attractive platform for applications such as quantum information processing and artificial neural networks. However, current programmable circuits are limited in scalability by the lack of low-po ...

OPTICAL SOC AMER2021

Silicon photonic MEMS phase shifter with mu s time constant built on a foundry platform

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

MEMS enable low power tuners in silicon photonics, but existing phase shifters lack in range, speed, and loss. We implement a 2 pi phase shifter with a 1.54 mu s time constant and 0.5 dB insertion loss in IMEC's iSiPP5OG platform. ...

IEEE2021

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

Niels Quack, Hamed Sattari, Alain Yuji Takabayashi

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

Wafer-Level Vacuum Sealing for Packaging of Silicon Photonic MEMS

Niels Quack, Göran Stemme, Hamed Sattari, Alain Yuji Takabayashi

Silicon (Si) photonic micro-electro-mechanical systems (MEMS), with its low-power phase shifters and tunable couplers, is emerging as a promising technology for large-scale reconfigurable photonics with potential applications for example in photonic accele ...

SPIE-INT SOC OPTICAL ENGINEERING2021

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

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

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