Publications by Rui Ning Wang | EPFL Graph Search

320 GHz photonic-electronic analogue-to-digital converter (ADC) exploiting Kerr soliton microcombs

Kerr soliton microcombs have the potential to disrupt a variety of applications such as ultra-high-speed optical communications, ultra-fast distance measurements, massively parallel light detection and ranging (LiDAR) or high-resolution optical spectroscop ...

Springer Science and Business Media LLC2025

Piezo-Mems Tunable Ultra Low-Noise Laser

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth, Andrea Bancora, Andrey Voloshin, Vladimir Shadymov

In this paper, we present the first ultra-low-noise, self-injection locked (SIL) laser with frequency agility based on the monolithic integration of a low-loss silicon nitride (Si3N4) photonic spiral cavity with an aluminum nitride (AlN) actuator. The self ...

IEEE2025

Frequency-agile Hybrid Integrated Laser at Sub-micron Spectral Range for Coherent Sensing and Quantum Applications

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth

We demonstrate a hybrid integrated low-noise laser based on a 900 nm laser diode self-injection locked to a microresonator with MEMS actuators exhibiting a frequency actuation bandwidth >10 MHz and a tuning efficiency >30 MHz/V. ...

Institute of Electrical and Electronics Engineers Inc.2024

Piezoelectric actuation for integrated photonics

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth, Viacheslav Snigirev, Andrea Bancora, Andrey Voloshin, Vladimir Shadymov

Recent decades have seen significant advancements in integrated photonics, driven by improvements in nanofabrication technology. This field has been developed from integrated semiconductor lasers and low-loss waveguides to optical modulators, enabling the ...

Optica Publishing Group2024

A fully hybrid integrated erbium-based laser

Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu, Andrea Bancora, Andrey Voloshin

Erbium-doped fibre lasers exhibit high coherence and low noise as required for fibre-optic sensing, gyroscopes, LiDAR and optical frequency metrology. Endowing erbium-based gain in photonic integrated circuits can provide a basis for miniaturizing low-nois ...

Nature Publishing Group2024

Foundry compatible, efficient wafer-scale manufacturing of ultra-low loss, high-density Si3N4 photonic integrated circuits

Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu

We demonstrate ultra-low propagation loss, lithographic precision, and wafer-scale manufacturing for high-density Si3N4 photonic integrated circuits using an efficient DUV-based subtractive approach. We show a propagation loss as low as 1.4 dB/m at 1.55 µm ...

Optical Society of America2024

Efficient mass manufacturing of high-density, ultra-low-loss Si3N4 photonic integrated circuits

Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu

Silicon nitride (Si3N4) photonic integrated circuits (PICs) offer significant advantages over traditional silicon photonics, including low loss and superior power handling at optical communication wavelength bands. To facilitate high-density integration an ...

2024

Large-Scale Photonic Chip Based Pulse Interleaver for Low-Noise Microwave Generation

Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu

We demonstrate a 64-times multiplication of a mode-locked laser’s 217 MHz pulse repetition rate to 14 GHz using an integrated Si3N4 interleaver. Six cascaded stages of Mach-Zehnder interferometers with up to 33 cm long optical delay lines are fully integra ...

Springer Science and Business Media Deutschland GmbH2024

Full C-band tunable integrated Erbium lasers via wafer-scale fabrication

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth, Xinru Ji, Zheru Qiu

We demonstrate an integrated Erbium-based tunable laser using wafer-scale fabrication and ion implantation of silicon nitride photonic integrated circuits, and achieve single-frequency lasing tunable from 1530 nm to 1575 nm covering the entire optical C-ba ...

Institute of Electrical and Electronics Engineers Inc.2024

Bidirectional microwave-optical transduction based on integration of high-overtone bulk acoustic resonators and photonic circuits

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth

Coherent interconversion between microwave and optical frequencies can serve as both classical and quantum interfaces for computing, communication, and sensing. Here, we present a compact microwave-optical transducer based on monolithic integration of piez ...

Nature Research2024