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Tobias Kippenberg

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Publications associées (465)

Low-temperature and hydrogen-free silicon dioxide cladding for next-generation integrated photonics

Tobias Kippenberg, Xinru Ji, Anat Siddharth, Zheru Qiu, Zihan Li

We demonstrate a process for hydrogen-free low-loss silicon oxide (SiO2) films deposited using S iCl4 and O 2 as precursors. A wide low-loss window from 1260 nm to 1625 nm is achieved at a deposition temperature of 300 ◦C, essential for next generation pho ...

Optical Society of America2024

Broadband and turnkey Pockels micro-comb with Monolithic Microwave Resonator

Tobias Kippenberg, Jianqi Hu, Mikhail Churaev, Junyin Zhang

We demonstrate a fully hybrid integrated electrooptic comb generator based on a dispersion engineered thin-film Lithium Tantalate microresonator featuring robust turnkey operation and record-broad >200nm span covering the entire telecommunications S, C, an ...

Institute of Electrical and Electronics Engineers Inc.2024

Microwave-Optical Transduction Using High-Overtone Bulk Acoustic Resonators on Silicon Nitride Photonics

Tobias Kippenberg, Anat Siddharth

We present compact microwave-optical transducers between the microwave S-band and optical C-band based on monolithic integration of piezoelectric actuators atop silicon nitride photonic circuits. The silica cladding of the optical waveguide core is suspend ...

Springer Science and Business Media Deutschland GmbH2024

Wafer-Scale Processing of Ultra-Low-Loss Gallium Phosphide Integrated Photonics

Tobias Kippenberg, Nikolai Kuznetsov

We demonstrate wafer-scale processing of integrated photonic circuits made of gallium phosphide, with propagation losses in waveguides as low as 0.40 dB/cm, and establish new record-high quality factors with resonators on this material platform. ...

Institute of Electrical and Electronics Engineers Inc.2024

Ultrabroadband Integrated Triply Resonant Electro-Optic Frequency Comb in Lithium Tantalate

Tobias Kippenberg, Jianqi Hu, Mikhail Churaev, Nikolai Kuznetsov, Zihan Li, Junyin Zhang

We demonstrated an integrated electro-optic frequency comb generator with 450nm span and 29.6GHz spacing, entirely covering optical telecom E-, S-, C-, L-, and U-bands, via monolithic co-integration of microwave and photonics resonators on thin-film lithiu ...

Optica Publishing Group (formerly OSA)2024

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

Rui Ning Wang, Tobias Kippenberg, 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

Lithium Tantalate Photonic Integrated Circuits (Student Paper)

Tobias Kippenberg, Mikhail Churaev, Xinru Ji, Zihan Li

We demonstrate a wafer-scale lithium tantalate photonic platform with loss as low as 5.5 dB m(-1). Mach-Zehnder modulators with a 40 GHz electro-optical bandwidth and a 1.96 V center dot cm voltage-length product, along with microresonators supporting diss ...

Springer Nature2024

Integrated lithium tantalate electro-optic modulator

Tobias Kippenberg, Mikhail Churaev, Junyin Zhang

We demonstrate an integrated lithium tantalate electro-optic Mach-Zehnder modulator exhibiting the voltage-length product of 3.7 V·cm and bandwidth of at least 67 GHz. ...

Institute of Electrical and Electronics Engineers Inc.2024

Observation of Fundamental Charge Noise in Electro-Optic Photonics Integrated Circuits

Tobias Kippenberg, Guanhao Huang, Zihan Li, Junyin Zhang

We observed a novel 1/f-type frequency noise in Lithium Niobate and Lithium Tantalate microresonators, distinct from thermorefractive noise and originating from thermodynamic charge fluctuations, setting the linewidth limits for integrated lasers. A charge ...

Optica Publishing Group (formerly OSA)2024

Broadband and high-gain traveling-wave optical parametric amplification in a gallium phosphide photonic integrated circuit

Tobias Kippenberg, Alberto Nardi, Nikolai Kuznetsov, Alisa Davydova

We demonstrate continuous-wave parametric amplifier w ith a 1 40 n m gain bandwidth spanning the optical S,C, and L-bands and up to 25 dB off-chip net-gain in a dispersion engineered gallium phosphide-on-insulator (GaPOI) waveguide with up to 160 mW output ...

Institute of Electrical and Electronics Engineers Inc.2024

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

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

Hertz-linewidth, high-power, frequency-agile photonic integrated E-DBR laser

Tobias Kippenberg, Anat Siddharth, Zheru Qiu

We demonstrate hybrid integration of an RSOA with an extended-distributed Bragg reflector (E-DBR) laser cavity implemented on a Si3N4 chip with monolithically integrated piezoactuators. The laser exhibits intrinsic linewidth of 4 Hz with laser frequency tu ...

Optical Society of America2024

Arbitrary Dispersion Engineering in High-Refractive-Index Photonic Crystal Cavities

Tobias Kippenberg, Alisa Davydova

We present an algorithm to arbitrarily engineer the dispersion of photonic-crystal Fabry-Pérot resonators via the accurate design of chirped reflectors, opening avenues to exotic dispersion profiles, dispersive-wave engineering and near-zero-dispersion sol ...

Institute of Electrical and Electronics Engineers Inc.2024

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

Rui Ning Wang, Tobias Kippenberg, 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

Room-temperature quantum optomechanics using an ultralow noise cavity

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

At room temperature, mechanical motion driven by the quantum backaction of light has been observed only in pioneering experiments in which an optical restoring force controls the oscillator stiffness1,2. For solid-state mechanical resonators in which oscil ...

Nature Portfolio2024

Duv photolithography electrode fabrication method and electrode produced using the method

Tobias Kippenberg, Zihan Li

DUV photolithography compatible electrode fabrication method comprising providing at least one material surface to which at least one electrode is to be attached; providing at least one undercut non-photoresist material or support between the at least one ...

2024

Probing the Formation of Nonlinear Optical States with Free Electrons

Rui Ning Wang, Tobias Kippenberg, Arslan Sajid Raja, Guanhao Huang, Alexey Tikan, Aleksandr Tusnin, Zheru Qiu, Yujia Yang

Combining nonlinear integrated photonics with electron microscopy, we probe the formation of optical dissipative structures in Si3N4 microresonators with free electrons and find unique spectral fingerprints in the electron spectrum that enable new electron ...

Institute of Electrical and Electronics Engineers Inc.2024

Ultrafast Tunable Photonic Integrated E-DBR Pockels Laser

Tobias Kippenberg, Anat Siddharth, Zheru Qiu

The hybrid integration of III-V gain media with low-loss photonic integrated circuits has advanced the performance of laser systems in terms of laser stability and coherence. The advent of lithium niobate on insulator (LNOI) photonics for self-injection lo ...

Springer Science and Business Media Deutschland GmbH2024

Mechanically induced correlated errors on superconducting qubits with relaxation times exceeding 0.4 ms

Tobias Kippenberg, Amir Youssefi, Xuxin Wang, Mahdi Chegnizadeh, Shingo Kono, Marco Scigliuzzo

Superconducting qubits are among the most advanced candidates for achieving fault-tolerant quantum computing. Despite recent significant advancements in the qubit lifetimes, the origin of the loss mechanism for state-of-the-art qubits is still subject to i ...

Nature Portfolio2024

Lithium tantalate photonic integrated circuits for volume manufacturing

Tobias Kippenberg, Kai Huang, Chen Yang, Mikhail Churaev, Xinru Ji, Yang Chen, Zihan Li, Alisa Davydova, Xi Wang, Junyin Zhang

Electro-optical photonic integrated circuits (PICs) based on lithium niobate (LiNbO3) have demonstrated the vast capabilities of materials with a high Pockels coefficient1,2. They enable linear and high-speed modulators operating at complementary metal–oxi ...

2024

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