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Alain Yuji Takabayashi

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Publications associées (36)

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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

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

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

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

MEMS-Enabled Silicon Photonic Integrated Devices and Circuits

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari, 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

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

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

Scalable Nano-Opto-Electromechanical Systems in Silicon Photonics

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

Freestanding Silicon Photonic Ring and Disk Resonators

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari, 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

Fully Reconfigurable Coupled-Resonator Optical Waveguides (CROWs) with 10 nW Static Power MEMS

Niels Quack, Alain Yuji Takabayashi

We report on fully reconfigurable CROWs with MEMS-tunable waveguides. Resonatorto-resonator and resonator-to-waveguide coupling are fully tunable. Resonance of a resonator is also widely tunable to cover its full FSR. The static power consumption per tunab ...

IEEE2021

MORPHIC: MEMS enhanced silicon photonics for programmable photonics

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

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

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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

A compact 2 × 2 optical gate using a silicon photonic MEMS dual-drive directional coupler

Niels Quack, Alain Yuji Takabayashi

Reconfigurable optical gates control power and phase in programmable photonic circuits. However, state-of-the-art optical gates are power-hungry due to using heaters and large due to using Mach-Zehnder Interferometers. Here, we demonstrate a compact low-po ...

SPIE2025

16-Core Recirculating Programmable Si Photonic MEMS

Niels Quack, Alain Yuji Takabayashi

We report on a 16-core recirculating programmable photonic array based on MEMS-tunable directional couplers. The photonic array has a compact footprint (0.04mm(2)/cell) and negligible static power consumption. Waveguide-coupled single-ring resonators, CROW ...

IEEE2021

A MEMS tunable phase monitor with integrated photodiode read-out for silicon photonic circuits

Niels Quack, Alain Yuji Takabayashi

Electrostatic MEMS provide low power consumption to programmable photonics. However, the scaling of programmable photonics also requires solutions for circuit monitoring. We demonstrate a MEMS tunable phase monitor with integrated read-out on a foundry pla ...

Optical Society of America2023

Silicon Photonic MEMS Add-Drop Filter

Niels Quack, Alain Yuji Takabayashi, Hamed Sattari

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