Nature Search

Near-visible integrated soliton microcombs with detectable repetition rates

Integrated optical frequency combs are powerful tools for optical spectroscopy. Here, authors demonstrate low-power, detectable-rate soliton microcombs from telecom to visible bands, including wavelength-multiplexed operation, using ultra-low-loss silicon nitride waveguides.

Peng Liu
Qing-Xin Ji
Kerry J. Vahala
ResearchOpen Access22 May 2025
Nature Communications

Volume: 16, P: 1-6
Harnessing micro-Fabry–Pérot reference cavities in photonic integrated circuits

Self-injection locking of an on-chip laser to a milimetre-scale vacuum-gap Fabry–Pérot cavity is demonstrated, with a phase noise of –97 dBc Hz^–1 at a 10-kHz offset frequency and a fractional frequency stability of 5 × 10⁻¹³ at 10 ms, enabling next-generation high-performance integrated systems.

Haotian Cheng
Chao Xiang
Peter T. Rakich
ResearchOpen Access06 Jun 2025
Nature Photonics

P: 1-7
Dispersive-wave-agile optical frequency division

Using two-point optical frequency division based on a frequency-agile single-mode dispersive wave, a microwave signal source with record-low phase noise using a microcomb is demonstrated, offering over tenfold lower phase noise than state-of-the-art approaches.

Qing-Xin Ji
Wei Zhang
Kerry Vahala
ResearchOpen Access23 May 2025
Nature Photonics

Volume: 19, P: 624-629
Chaos-assisted two-octave-spanning microcombs

Here, the authors demonstrate the use of chaos to obtain 2-octave comb generation. The deformation lifts the circular symmetry and creates chaotic tunneling channels that enable broadband collection of intracavity emission with a single waveguide, introducing a new degree of freedom to microcomb studies.

Hao-Jing Chen
Qing-Xin Ji
Yun-Feng Xiao
ResearchOpen Access11 May 2020
Nature Communications

Volume: 11, P: 1-6
Integrated turnkey soliton microcombs

A turnkey regime for soliton microcombs is demonstrated, in which solitons are generated by switching on a co-integrated pump laser, eliminating the need for photonic and electronic control circuitry.

Boqiang Shen
Lin Chang
John E. Bowers
Research17 Jun 2020
Nature

Volume: 582, P: 365-369
Probing material absorption and optical nonlinearity of integrated photonic materials

Optical absorption and nonlinear index are important performance drivers in devices like microcombs. Here the authors use resonance-enhanced nonlinear spectroscopy to characterize absorption limits and nonlinear index for some integrated photonic materials.

Maodong Gao
Qi-Fan Yang
Kerry J. Vahala
ResearchOpen Access09 Jun 2022
Nature Communications

Volume: 13, P: 1-8
Dispersive-wave induced noise limits in miniature soliton microwave sources

Here the authors explore the noise spectrum of soliton microcomb when the pump is decoupled from the solitons motion by balancing the Raman shift with the emitted dispersive wave. Based on the analysis of the phase noise and the soliton repetition rate, they identify the uncorrelated thermal fluctuations as underlying mechanism.

Qi-Fan Yang
Qing-Xin Ji
Kerry Vahala
ResearchOpen Access04 Mar 2021
Nature Communications

Volume: 12, P: 1-10
Author Correction: Pro-ferroptotic signaling promotes arterial aging via vascular smooth muscle cell senescence

Di-Yang Sun
Wen-Bin Wu
Pei Wang
Amendments and CorrectionsOpen Access14 Nov 2024
Nature Communications

Volume: 15, P: 1
Photonic chip-based low-noise microwave oscillator

We leverage advances in integrated photonics to generate low-noise microwaves with an optical frequency division architecture that can be low power and chip integrated.

Igor Kudelin
William Groman
Scott A. Diddams
ResearchOpen Access06 Mar 2024
Nature

Volume: 627, P: 534-539
Pro-ferroptotic signaling promotes arterial aging via vascular smooth muscle cell senescence

Ferroptosis is a novel form of regulated cell death associated with lipid oxidation. Here, the authors demonstrate that the proferroptosis signal is activated and drives vascular aging by inducing senescence in vascular smooth muscle cells.

Di-Yang Sun
Wen-Bin Wu
Pei Wang
ResearchOpen Access16 Feb 2024
Nature Communications

Volume: 15, P: 1-22
3D integration enables ultralow-noise isolator-free lasers in silicon photonics

Three-dimensional integration of distributed-feedback lasers and ultralow-loss silicon nitride waveguides results in ultralow-noise lasers without the need for optical isolators.

Chao Xiang
Warren Jin
John E. Bowers
ResearchOpen Access02 Aug 2023
Nature

Volume: 620, P: 78-85
Soliton pulse pairs at multiple colours in normal dispersion microresonators

Bright solitons are produced through the interaction of pulse pairs generated via a continuous-wave fibre laser, which pumps two coupled microresonators featuring normal dispersion. Multicolour pulse pairs over multiple rings can also be generated, of great promise for applications such as all-optical soliton buffers and memories, study of quantum combs and topological photonics.

Zhiquan Yuan
Maodong Gao
Kerry Vahala
ResearchOpen Access03 Aug 2023
Nature Photonics

Volume: 17, P: 977-983
Vlasouliolides A-D, four rare C₁₇/C₁₅ sesquiterpene lactone dimers with potential anti-inflammatory activity from Vladimiria souliei

Li-Ping Chen
Guo-Zhen Wu
Wei-Dong Zhang
ResearchOpen Access03 Mar 2017
Scientific Reports

Volume: 7, P: 1-7
Ferroptotic stress facilitates smooth muscle cell dedifferentiation in arterial remodelling by disrupting mitochondrial homeostasis

Qing-Xin Ji
Fei-Yan Zeng
Pei Wang
Research07 Dec 2022
Cell Death & Differentiation

Volume: 30, P: 457-474

Search

Near-visible integrated soliton microcombs with detectable repetition rates

Harnessing micro-Fabry–Pérot reference cavities in photonic integrated circuits

Dispersive-wave-agile optical frequency division

Chaos-assisted two-octave-spanning microcombs

Integrated turnkey soliton microcombs

Probing material absorption and optical nonlinearity of integrated photonic materials

Dispersive-wave induced noise limits in miniature soliton microwave sources

Author Correction: Pro-ferroptotic signaling promotes arterial aging via vascular smooth muscle cell senescence

Photonic chip-based low-noise microwave oscillator

Pro-ferroptotic signaling promotes arterial aging via vascular smooth muscle cell senescence

3D integration enables ultralow-noise isolator-free lasers in silicon photonics

Soliton pulse pairs at multiple colours in normal dispersion microresonators

Vlasouliolides A-D, four rare C₁₇/C₁₅ sesquiterpene lactone dimers with potential anti-inflammatory activity from Vladimiria souliei

Ferroptotic stress facilitates smooth muscle cell dedifferentiation in arterial remodelling by disrupting mitochondrial homeostasis

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