Publications de Tobias Kippenberg

Compact Superconducting Vacuum-gap Capacitors with Low Microwave Loss and High Mechanical Coherence for Scalable Quantum Circuits

Tobias Kippenberg, Amir Youssefi, Marco Scigliuzzo, Mahdi Chegnizadeh

Vacuum-gap capacitors have recently attracted significant interest in superconducting circuit platforms due to their compact design and exceptionally low dielectric losses in the microwave regime. Their intrinsic ability to support mechanical vibrational m ...

American Physical Society (APS)2025

Ultrafast Tunable Photonic Integrated Extended-DBR Pockels Laser

Tobias Kippenberg, Anat Siddharth, Zheru Qiu, Andrey Voloshin

Hybrid photonic integrated lasers have revolutionized laser technology by combining the scalable manufacturing of simple laser diodes with high-performance features such as frequency stability, opticallinewidth, and tuning linearity [1], traditionally only ...

IEEE2025

Motional Sideband Asymmetry of a Solid-State Mechanical Resonator at Room Temperature

Tobias Kippenberg, Alberto Beccari, Amirali Arabmoheghi, Nils Johan Engelsen, Guanhao Huang

The motional sideband asymmetry of a mechanical oscillator interacting with a laser field can be observed when approaching the quantum ground state, where the zero-point energy of the mechanical oscillator becomes a sizable contribution to its motion. In t ...

2025

Ultrafast tunable photonic-integrated extended-DBR Pockels laser

Tobias Kippenberg, Anat Siddharth, Zheru Qiu, Andrey Voloshin

Frequency-agile lasers that can simultaneously feature low noise characteristics and fast mode-hop-free frequency tuning are keystone components for applications ranging from LiDAR and distributed sensing to communication and quantum information processing ...

Nature Publishing Group2025

An Ultra-Broadband Gallium Phosphide Optical Parametric Amplifier

Tobias Kippenberg, Mikhail Churaev, Nikolai Kuznetsov, Alisa Davydova, Alberto Nardi

Optical parametric amplification [1], which utilizes material nonlinearities, has long been considered one approach to increase channel capacity, but the technical complexity of systems using highly nonlinear fibers or bulk waveguides restricts their pract ...

IEEE2025

Coherent Dissipative Structures in Arbitrary Dispersion-Engineered Gallium Phosphide Fabry-Perot Resonators

Tobias Kippenberg, Nikolai Kuznetsov, Alisa Davydova

The diversity of experimentally observed nonlinear coherent and partially coherent optical structures, including breathing, zero-dispersion, and switching wave states in driven optical microresonators, is mainly provided by cavity dispersion engineering. R ...

IEEE2025

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

Tobias Kippenberg, Rui Ning Wang

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

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

Tobias Kippenberg, Xinru Ji, Zheru Qiu, Grigorii Likhachev, Andrey Voloshin

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

Frequency Conversion in Periodically Poled Thin-Film Lithium Tantalate Photonic Integrated Circuits

Tobias Kippenberg, Nikolai Kuznetsov, Zihan Li

Second-order optical nonlinear processes, such as second harmonic generation, difference-frequency generation, or sum-frequency generation, find numerous applications in laser science, quantum technology, sensing, photonic computing, and many other areas. ...

IEEE2025

High-Energy Mode-Locked Pulses from a Photonic Integrated Mamyshev Oscillator

Tobias Kippenberg, Jianqi Hu, Xinru Ji, Zheru Qiu, Grigorii Likhachev, Zihan Li

Mode-locked lasers (MLLs), capable of generating ultrashort coherent pulses, have been instrumental for numerous applications, including optical frequency metrology, eye surgery, machining, additive manufacturing, imaging and spectroscopy. However, commerc ...

IEEE2025