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Extreme current measurements using a fibre optics current sensor

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High density lithium niobate photonic integrated circuits

Tobias Kippenberg, Rui Ning Wang, Anat Siddharth, Mikhail Churaev, Nikolai Kuznetsov, Zihan Li, Junyin Zhang, Zelin Tan

Photonic integrated circuits have the potential to pervade into multiple applications traditionally limited to bulk optics. Of particular interest for new applications are ferroelectrics such as Lithium Niobate, which exhibit a large Pockels effect, but ar ...

NATURE PORTFOLIO2023

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

Dual chirped microcomb based parallel ranging at megapixel-line rates

Tobias Kippenberg, Junqiu Liu, Maxim Karpov, Anton Lukashchuk

Photonic integrated systems can be harnessed for fast and efficient optical telecommunication and metrology technologies. Here the authors develop a dual-soliton microcomb technique for massively parallel coherent laser ranging that requires only a single ...

NATURE PORTFOLIO2022

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

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Stoichiometric silicon nitride (Si3N4) is one of the most mature integrated photonic platforms for linear and nonlinear optical applications on-chip. However, because it is a centrosymmetric material, second-order nonlinear processes are inherently not ava ...

AMER CHEMICAL SOC2022

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Multi-mode waveguides are ubiquitously used in integrated photonics. Although interaction among different spatial waveguide eigenmodes can induce novel nonlinear phenomena, spatial mode interaction is typically undesired. Adiabatic bends, such as Euler ben ...

NATURE PORTFOLIO2022

A photonic integrated continuous-travelling-wave parametric amplifier

Tobias Kippenberg, Rui Ning Wang, Nikolai Kuznetsov, Junqiu Liu, Jijun He

The ability to amplify optical signals is of pivotal importance across science and technology typically using rare-earth-doped fibres or gain media based on III-V semiconductors. A different physical process to amplify optical signals is to use the Kerr no ...

NATURE PORTFOLIO2022

Design and Fabrication of Stretchable Photonic Fibers

Nicola Bartolomei

Optical fibers have reshaped the technological landscape, from optical networks and high-speed data communication to in situ imaging and non-invasive surgery methods. The revolution allowed by these fibers has been made possible by its fabrication method, ...

EPFL2021

Dissipative Kerr solitons in a photonic dimer on both sides of exceptional point

Tobias Kippenberg, Mikhail Churaev, Aleksandr Tusnin, Kenichi Komagata, Hairun Guo, Alexey Tikan

Exceptional points are a ubiquitous concept widely present in driven-dissipative coupled systems described by a non-Hermitian Hamiltonian. To date, exceptional points have been extensively examined in the systems supporting only a few optical modes, thereb ...

NATURE RESEARCH2021

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Integrated photonic devices based on Si3N4 waveguides allow for the exploitation of nonlinear frequency conversion, exhibit low propagation loss, and have led to advances in compact atomic clocks, ultrafast ranging, and spectroscopy. Yet, the lack of Pocke ...

2020