Publications by Yang Liu | EPFL Graph Search

Related publications (10)

Ultrahigh dynamic range and low noise figure programmable integrated microwave photonic filter

The authors demonstrate programmable integrated microwave photonic filters with low noise figure and ultrahigh dynamic range, using combination of modulation transformer and double injection ring resonator in a single photonic chip. Microwave photonics has ...

Nature Research2022

Photonic radar for contactless vital sign detection

Yang Liu

Vital sign detection is used across ubiquitous scenarios in medical and health settings, and contact and wearable sensors have been widely deployed. However, they are unsuitable for patients with burn wounds or infants with insufficient areas for attachmen ...

Nature Publishing Group2023

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

Tobias Kippenberg, Rui Ning Wang, Johann Emmeram Riemensberger, Zheru Qiu, Xinru Ji, Yang Liu

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

Guided-acoustic stimulated Brillouin scattering in silicon nitride photonic circuits

Yang Liu

Coherent optomechanical interaction known as stimulated Brillouin scattering (SBS) can enable ultrahigh resolution signal processing and narrow-linewidth lasers. SBS has recently been studied extensively in integrated waveguides; however, many implementati ...

2022

Optimizing performance for an on-chip stimulated Brillouin scattering-based isolator

Yang Liu

Non-reciprocal optical components such as isolators and circulators are crucial for preventing catastrophic back -reflection and controlling optical cross talk in photonic systems. While non-reciprocal devices based on Brillouin intermodal transitions have ...

2023

A fully hybrid integrated erbium-based laser

Tobias Kippenberg, Rui Ning Wang, Johann Emmeram Riemensberger, Zheru Qiu, Xinru Ji, Andrey Voloshin, Yang Liu, Andrea Bancora

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

All-integrated multidimensional optical sensing with a photonic neuromorphic processor

Yang Liu

Multidimensional optical sensing is crucial in information technology and modern intelligent systems. Despite advancement in optical sensing, capturing multidimensional light field information remains challenging, typically implemented using cascaded singl ...

American Association for the Advancement of Science (AAAS)2025

Photonic stepped-frequency radar with 150-m unambiguous detection and centimeter range resolution

Yang Liu

Photonic stepped-frequency radars based on optical frequency-shifting modulation have shown attractive properties such as wide bandwidth, centimeter range resolution, inherent frequency-time linearity with low spectrum spurs, and reduced system complexity. ...

2024

C- and L-band tunable integrated Erbium lasers via scalable manufacturing

Tobias Kippenberg, Zheru Qiu, Xinru Ji, Andrey Voloshin, Grigorii Likhachev, Yang Liu, Simone Bianconi, Xuan Yang

We demonstrate an integrated Erbium-based tunable laser using wafer-scale fabrication and ion implantation of silicon nitride photonic integrated circuits. We achieve single-frequency lasing tunable from 1530 nm to 1621 nm covering nearly the entire optica ...

Optica Publishing Group2025

Photonic-electronic integrated circuit-based coherent LiDAR engine

Edoardo Charbon, Tobias Kippenberg, Anton Lukashchuk, Zheru Qiu, Xinru Ji, Andrey Voloshin, Grigorii Likhachev, Yang Liu, Andrea Bancora, Halil Kerim Yildirim

Chip-scale integration is a key enabler for the deployment of photonic technologies. Coherent laser ranging or FMCW LiDAR, a perception technology that benefits from instantaneous velocity and distance detection, eye-safe operation, long-range, and immunit ...

Nature Portfolio2024