Microresonator Frequency Combs: New Horizons

Published articles

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  Genetic algorithm-enhanced microcomb state generation

  Generating stable frequency combs with desired features is crucial for enabling applications in diverse fields, such as telecommunications, spectroscopy, and artificial intelligence. In this work, the authors demonstrated an autonomous optimization scheme based on genetic algorithms to tailor coherent microcombs produced by a microring resonator.

  • Celine Mazoukh
  • Luigi Di Lauro
  • Roberto Morandotti

  ArticleOpen Access5 Mar 2024 Communications Physics
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  Compact, spatial-mode-interaction-free, ultralow-loss, nonlinear photonic integrated circuits

  Adiabatic bends are used to reduce the optical loss of waveguides for integrated optics, but quantitative analysis of their adiabaticity have not been reported. Here, racetrack microresonators with circular and Euler bends are compared quantitatively, showing that the adiabatic Euler bends can preserve low optical loss and avoid spatial mode interaction in multimode waveguides.

  • Xinru Ji
  • Junqiu Liu
  • Tobias J. Kippenberg

  ArticleOpen Access7 Apr 2022 Communications Physics
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  Thin-film lithium-niobate electro-optic platform for spectrally tailored dual-comb spectroscopy

  Thin-film lithium niobate is a promising photonic platform owing to its strong optical nonlinearity and low losses. Here, the utility of this platform is demonstrated as a tunable dual frequency comb spectrometer based on second-order nonlinearities in a proof-of-principle experiment.

  • Amirhassan Shams-Ansari
  • Mengjie Yu
  • Marko Lončar

  ArticleOpen Access12 Apr 2022 Communications Physics
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  Soliton linear-wave scattering in a Kerr microresonator

  Tuneable microresonator frequency combs offer low-power, coherent light with a small device footprint. Here, the concept of controlling the comb frequency by detuning the probe phase is translated from photonic crystal fibres to a Kerr microresonator.

  • Pierce C. Qureshi
  • Vincent Ng
  • Stuart G. Murdoch

  ArticleOpen Access24 May 2022 Communications Physics
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  Ladder of Eckhaus instabilities and parametric conversion in chi(2) microresonators

  A series of discrete transitions between the different mode pairs in the output of the microresonator OPOs has hinted at a connection with Eckhaus instabilities originally discovered in fluid dynamics. The theory of this effect is developed to describe the OPO signal tuning by the pump laser frequency adjustment in the proximity of one resonance.

  • Danila N. Puzyrev
  • Dmitry V. Skryabin

  ArticleOpen Access1 Jun 2022 Communications Physics
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  Dissipative discrete time crystals in a pump-modulated Kerr microcavity

  Discrete time crystals are a new state of matter emerging via spontaneous discrete translational symmetry breaking in time. The authors demonstrate that a dissipative discrete time crystal appears in an optical microcavity pumped by a phase-modulated continuous wave laser, offering a new route to study this exotic crystal phase.

  • Hossein Taheri
  • Andrey B. Matsko
  • Krzysztof Sacha

  ArticleOpen Access22 Jun 2022 Communications Physics
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  Topological soliton metacrystals

  Topological photonics and time crystals push frontiers of modern physics and promise a host of applications. Here, we report the bandgap structure and topological properties of the soliton trains in Kerr microresonators.

  • Zhiwei Fan
  • Danila N. Puzyrev
  • Dmitry V. Skryabin

  ArticleOpen Access8 Oct 2022 Communications Physics
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  High-frequency chaotic bursts in laser diode with optical-feedback

  The chaotic behavior due to the non-linearity present in a time-delayed feedback system has potential applications for secure optical communication and encryption. Here, a laser diode with phase-conjugate feedback is reported with state-of-the-art broadband, spatiotemporally complex, and high-entropy chaos.

  • Tushar Malica
  • Guillaume Bouchez
  • Marc Sciamanna

  ArticleOpen Access16 Nov 2022 Communications Physics
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  Low phase noise THz generation from a fiber-referenced Kerr microresonator soliton comb

  Low phase-noise THz wave generation is in high demand for applications such as wireless communications and radars. Here, the authors generate low-noise THz waves via photodetection of the carrier of a Kerr frequency comb, which is repetition-rate stabilized using a two-wavelength delayed self-heterodyne interferometer.

  • Naoya Kuse
  • Kenji Nishimoto
  • Takeshi Yasui

  ArticleOpen Access2 Dec 2022 Communications Physics
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  Versatile tuning of Kerr soliton microcombs in crystalline microresonators

  High-repetition rate microresonator-based frequency combs offer powerful and compact optical frequency comb sources that are of great importance to various applications. Here, the authors extend the tunability of the Kerr soliton frequency combs by exploiting thermal effects and frequency stabilization techniques.

  • Shun Fujii
  • Koshiro Wada
  • Takasumi Tanabe

  ArticleOpen Access10 Jan 2023 Communications Physics
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  A power-efficient integrated lithium niobate electro-optic comb generator

  Integrated electro-optic frequency combs are important components for future applications in optical communications, and these often require an efficient modulation mechanism. The authors demonstrate power-efficient lithium niobite phase modulators for electro-optic comb generation by implementing a 4x multi-pass configuration via mode multiplexing allowing for an experimental 15x reduction in power consumption; they demonstrate a broadband comb spectrum with 47 lines at 25-GHz comb spacing.

  • Ke Zhang
  • Wenzhao Sun
  • Cheng Wang

  ArticleOpen Access23 Jan 2023 Communications Physics
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  Optimized frequency comb spectrum of parametrically modulated bottle microresonators

  “Previous studies investigating the creation of optical frequency combs through parametric modulation of microresonators rely on lumped-element models that do not consider how the modulations are spatially distributed. The current study underscores the crucial role of these spatial distributions in SNAP bottle microresonators, particularly in producing optical frequency combs with low repetition rate.

  • Manuel Crespo-Ballesteros
  • Andrey B. Matsko
  • Misha Sumetsky

  ArticleOpen Access21 Mar 2023 Communications Physics
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  Modeling of dual frequency combs and bistable solitons in third-harmonic generation

  Third-harmonic generation frequency combs grant telecom pump laser sources the direct and simultaneous access to both the near infrared and the visible spectral regions. The authors model the broadband and temporally dispersive dual-comb generation, and identify conditions for accessing a regime supporting two distinct and coexisting cavity solitons.

  • Tobias Hansson
  • Pedro Parra-Rivas
  • Stefan Wabnitz

  ArticleOpen Access31 Mar 2023 Communications Physics
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  Ultra-efficient generation of time-energy entangled photon pairs in an InGaP photonic crystal cavity

  The generation of entangled photon pairs in an integrated platform is important for quantum technologies. This work experimentally demonstrates time-energy entangled photon pair generation from a suspended InGaP photonic crystal cavity with high pair generation rate, using a bichromatic lattice and thermal tuning.

  • Alexandre Chopin
  • Andrea Barone
  • Alfredo De Rossi

  ArticleOpen Access18 Apr 2023 Communications Physics
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  Microresonator-based electro-optic dual frequency comb

  Dual frequency combs are a powerful tool for a range of optical measurements and technologies. The authors here generate orthogonally polarized dual combs with exceptionally high relative stability.

  • Nicholas J. Lambert
  • Luke S. Trainor
  • Harald G. L. Schwefel

  ArticleOpen Access3 May 2023 Communications Physics
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  A stochastic approach to phase noise analysis for microwaves generated with Kerr optical frequency combs

  Kerr optical frequency combs are extensively explored for their potential capabilities in fields such optical communication, spectroscopy, and sensing. This work theoretically analyses the role of phase noise in comb generation dynamics through a stochastic approach, which can impact future studies of frequency comb sources.

  • Fengyu Liu
  • Curtis R. Menyuk
  • Yanne K. Chembo

  ArticleOpen Access25 May 2023 Communications Physics
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  Fourier synthesis dispersion engineering of photonic crystal microrings for broadband frequency combs

  Broadband Kerr frequency combs require engineering of the dispersion profile of the microresonator, which is challenging to do in an arbitrary fashion, due to the material dispersion and limited number of geometric control parameters of typical platforms used. The authors show and discuss the limits of an arbitrary dispersion engineering technique, based on Fourier synthesis design of photonic crystal microrings, and investigate its impact on soliton formation.

  • Grégory Moille
  • Xiyuan Lu
  • Kartik Srinivasan

  ArticleOpen Access19 Jun 2023 Communications Physics
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  Nonlocal bonding of a soliton and a blue-detuned state in a microcomb laser

  Cavity-solitons in microresonator-filtered fibre lasers are robust states with self-recovery capabilities that emerge when a delicate balance of energy-dependent nonlinearities is achieved. In this work, the authors make use of the dispersive Fourier transform to understand the dynamics leading to a soliton bonded with a quasi-continuous wave.

  • Antonio Cutrona
  • Vittorio Cecconi
  • Alessia Pasquazi

  ArticleOpen Access20 Sep 2023 Communications Physics
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  Platicon dynamics in photonic molecules

  Platicons microcombs can be generated in photonic molecules from a continuous-wave pump, but their spectrum is typically distorted. The authors observe the formation of a platicon microcomb using a photonic molecule realized with two coupled microcavities, resulting in engineered microcomb spectrum approaching the ideal single microresonator case.

  • Israel Rebolledo-Salgado
  • Clara Quevedo-Galán
  • Victor Torres-Company

  ArticleOpen Access17 Oct 2023 Communications Physics
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  Nonlinear dynamics and Kerr frequency comb formation in lattices of coupled microresonators

  Recently, the study of optical frequency combs and nonlinear dynamics in optical microresonators demonstrated a vast variety of dissipative structures with a wide range of nonlinear phenomena. In this paper, the authors extend the conventional systems to the chains of resonators, demonstrating rich two-dimensional dynamics in different dynamical regimes.

  • Aleksandr Tusnin
  • Alexey Tikan
  • Tobias J. Kippenberg

  ArticleOpen Access2 Nov 2023 Communications Physics