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Showing 1–12 of 12 results
Advanced filters: Author: Grigory V. Lihachev Clear advanced filters

  • Stable and tunable integrated lasers are fundamental building blocks for applications from spectroscopy to imaging and communication. Here the authors present a narrow linewidth hybrid photonic integrated laser with low frequency noise and fast linear wavelength tuning. They then provide an efficient FMCW LIDAR demonstration.

    • Grigory Lihachev
    • Johann Riemensberger
    • Tobias J. Kippenberg
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-10

  • Lithium niobate (LN) is difficult to process via dry etching. Here, authors demonstrate the fabrication of deeply etched, tightly confining, low loss LN photonic integrated circuits with losses 4 dB/m using diamond like carbon as a hard mask.

    • Zihan Li
    • Rui Ning Wang
    • Tobias J. Kippenberg
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Self-injection locking of the pump laser for a soliton microcomb has significantly relaxed the requirements for laser drives. Here the authors study self-injection locking in experiment and theory and reveal that the soliton formation is feasible with detunings unreachable according to previous theories.

    • Andrey S. Voloshin
    • Nikita M. Kondratiev
    • Igor A. Bilenko
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • A frequency-tunable laser based on a hybrid silicon nitride and lithium niobate integrated photonic platform has a fast tuning rate and could be used for optical ranging applications.

    • Viacheslav Snigirev
    • Annina Riedhauser
    • Tobias J. Kippenberg
    ResearchOpen Access
    Nature
    Volume: 615, P: 411-417

  • The researchers showcase a photonic-electronic FMCW LiDAR source composed of a micro-electronic based high-voltage arbitrary waveform generator, a photonic circuit-based tunable Vernier laser with piezoelectric actuators, and an erbium-doped waveguide amplifier.

    • Anton Lukashchuk
    • Halil Kerim Yildirim
    • Tobias J. Kippenberg
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-9

  • Thermal agitation of charge carriers, known as Johnson noise, is the dominant noise in electronic circuits. Now it has also been observed as a key noise source in integrated electro-optic photonic circuits, posing challenges for future applications.

    • Junyin Zhang
    • Zihan Li
    • Tobias J. Kippenberg
    Research
    Nature Physics
    Volume: 21, P: 304-311

  • Electro-optical photonic integrated circuits based on lithium tantalate perform as well as current state-of-the-art ones using lithium niobate but the material has the advantage of existing commercial uses in consumer electronics, easing the problem of scalability.

    • Chengli Wang
    • Zihan Li
    • Tobias J. Kippenberg
    ResearchOpen Access
    Nature
    Volume: 629, P: 784-790

  • A fully hybrid integrated erbium-doped photonic integrated waveguide laser with wide tuning of 40 nm, side-mode suppression ratio of >70 dB and output power up to 17 mW is demonstrated, achieving not only footprint reduction but also the long-anticipated fibre-laser coherence.

    • Yang Liu
    • Zheru Qiu
    • Tobias J. Kippenberg
    Research
    Nature Photonics
    Volume: 18, P: 829-835

  • By monolithically integrating piezoelectric actuators on ultralow-loss photonic circuits, soliton microcombs—a spectrum of sharp lines over a range of optical frequencies—can be modulated at high speeds with megahertz bandwidths.

    • Junqiu Liu
    • Hao Tian
    • Tobias J. Kippenberg
    Research
    Nature
    Volume: 583, P: 385-390