Publications by Hamed Sattari | EPFL Graph Search

Related publications (29)

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

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

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

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

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

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

Wafer-Level Vacuum Sealing for Packaging of Silicon Photonic MEMS

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

Utilizing electromagnetically induced transparency in InAs quantum dots for all-optical transistor design

Hamed Sattari

We propose a multilayer medium with semiconductor quantum dot nano-structures as a defect layer for all-optical control of the 1.55 mu m probe beam. The effect of the coupling field and incoherent pump on absorption and dispersion properties of the quantum ...

Optical Soc Amer2017

MORPHIC: Programmable photonic circuits enabled by silicon photonic MEMS

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

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

Smart Slit Assembly Employing Continuously Tunable MEMS Shutter

Niels Quack, Hamed Sattari, Gergely Huszka, 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

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

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

Silicon Photonic MEMS: Exploiting Mechanics at the Nanoscale to Enhance Photonic Integrated Circuits

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari, Banafsheh Abasahl, Shiv Ashish Kumar

With the maturing and the increasing complexity of Silicon Photonics technology, novel avenues are pursued to reduce power consumption and to provide enhanced functionality: exploiting mechanical movement in advanced Silicon Photonic Integrated Circuits pr ...

IEEE2019

Compact Integrated Silicon Photonic Mems Power Coupler For Programmable Photonics

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

Silicon photonic microelectromechanical phase shifters for scalable programmable photonics

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

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

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

SPIE Society of Photo-Optical Instrumentation Engineers2024

Silicon Photonic Broadband Suspended Directional Coupler

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari, 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

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

Niels Quack, Hamed Sattari, Gergely Huszka, 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

Programmable silicon photonic circuits powered by MEMS

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

Compact broadband suspended silicon photonic directional coupler

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari, 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