Max Planck Institute for the Science of Light
Del'Haye LabMicrophotonics Research Laboratory

Publications

All papers from the group and from Pascal Del'Haye's earlier work, newest first. A complete list is on Google Scholar.

Icons show the research area (click one for all its papers):Microcombs and solitonsQuantum light on a chipSymmetry breaking and neuromorphic photonicsNonlinear photonicsIntegrated platforms and fabrication

2026

  1. Spatial characterization of nonlinear optical states in microresonators via scattered light imagingH. Zhang, H. Yan, A. Ghosh, S. Zhang, T. Bi, Y. Zhang, L. Hill, J. Xavier, A. Pal, Y. Zhuang, J. He, S. Pan, and P. Del’HayeAdv. Photon. Nexus 6, 016005 (Oct 2026)arXiv:2507.05450 (July 2025)Rendering of a silica rod resonator probed by a tungsten tip and imaged by an infrared camera, with recorded scattering patterns and spectra
  2. Twin-photon generation in a silicon nitride microresonatorF. Pacher, H. Yan, A. Ghosh, A. Pal, T. Bi, H. Zhang, L. You, H. Li, D. Salvoni, S. Zhang, and P. Del'HayearXiv:2609.04171 (Sep 2026)Rendering of a ring resonator on a chip: red and blue pump light enters through one waveguide, green twin photons leave through another
  3. Demonstration of a Single-Laser-Diode-Pumped Ti:Sapphire Astrocomb on the Southern African Large TelescopeE. Allan, Y. S. Cheng, K. Dadi, P. Castro-Marin, J. M. Charsley, W. Newman, A. Alabbadi, H. Ostapenko, R. A. McCracken, P. Del'Haye, T. Willemsen, T. Gross, D. L. Holdsworth, M. C. Scarrott, L. A. Crause, and D. T. ReidarXiv:2608.04733 (Aug 2026)
  4. Color Symmetry Breaking in a Nonlinear Optical MicroresonatorL. O. Trinchão, A. Ghosh, A. Pal, H. Yan, T. Bi, S. Zhang, N. B. Tomazio, F. K. Kunst, L. Hill, G. S. Wiederhecker, and P. Del'HayeLaser Photonics Rev., e71644 (Aug 2026)arXiv:2601.00792 (Jan 2026)Illustration of broadband symmetry breaking: comb spectra drawn as coloured peaks along a mode-index axis
  5. Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire LasersA. Alabbadi, E. Allan, H. Ostapenko, P. Castro-Marin, D. T. Reid, and P. Del'HayeLaser Photonics Rev., e71640 (July 2026)arXiv:2601.04047 (Jan 2026)Photograph of a chip waveguide glowing green and red, above images of light spots at wavelengths from 500 nm to 690 nm
  6. Hybrid Nonlinear Effects in Photonic Integrated CircuitsA. Pal, A. Ghosh, S. Zhang, T. Bi, M. Kheyri, H. Yan, Y. Zhang, and P. Del'HayeAdv. Photon. 8, 046008 (June 2026)arXiv:2505.01352 (May 2025)Rendering of a silicon nitride ring resonator on a chip, with Raman scattering in the cladding and four-wave mixing in the core producing a rainbow-coloured spectrum
  7. Magnon-mediated microwave to optical time dynamicsR. Jadhav, X. Zeng, C. Traub, F. Engelhardt, A. Alabbadi, A. Pal, P. Del'Haye, S. V. Kusminskiy, and B. StillerarXiv:2605.22772 (May 2026)
  8. From order to chaos in a chip-scale Kerr parametric oscillatorL. O. Trinchão, J. D. Mazo-Vásquez, M. Nienstedt, L. Peres, J. T. Gohsrich, E. S. Gonçalves, A. Ghosh, A. Pal, L. Fujii dos Santos, P. F. Jarschel, T. P. Mayer Alegre, N. B. Tomazio, F. K. Kunst, P. Del'Haye, L. Hill, and G. S. WiederheckerarXiv:2605.18690 (May 2026)
  9. Inverse-Designed Silicon Nitride NanophotonicsT. Bi, S. Zhang, E. Bostan, D. Liu, A. Paul, O. Ohletz, I. Harder, Y. Zhang, A. Ghosh, A. Alabbadi, M. Kheyri, T. Zeng, J. Lu, K. Yang, and P. Del’HayeNat. Commun. 17, 6943 (May 2026)arXiv:2505.13383 (May 2025)Pixel layout of an inverse-designed silicon nitride wavelength-division multiplexer that sends two input frequencies to separate output waveguides
  10. Symmetry-broken cavity solitons and collective polarization conformity in Fabry–Pérot Kerr resonatorsY. G. Sanvert, A. Alabbadi, L. Hill, Y. Xu, G. Xu, G. -L. Oppo, S. Coen, E. Lucas, P. Del'Haye, and J. FatomeOpt. Lett. 51, 2952 (May 2026)arXiv:2602.21946 (Feb 2026)Computed bifurcation diagram: intensity of cavity-soliton states versus normalized detuning
  11. Toward nanophotonic platforms for solid-state ²²⁹Th nuclear clocksS. Kraemer, K. Mamian, T. Bi, S. Fujii, J. de Haan, H. Babu, A. Claessens, R. Ferrer Garcia, F. Ivandikov, P. Van Duppen, A. Dragoun, C. E. Düllmann, C. Marquardt, U. Wahl, B. Kuyken, T. Schumm, P. Del'Haye, L. M. C. Pereira, G. A. Kazakov, K. Van Gasse, and C. Roques-CarmesarXiv:2604.20687 (Apr 2026)
  12. Vectorial light in Fabry-Pérot resonators in the normal-dispersion regimeG. N. Campbell, L. Hill, P. Del'Haye, and G.-L. OppoPhys. Rev. A 113, 043505 (Apr 2026)arXiv:2509.17663 (Sep 2025)
  13. Simplified Aluminum Nitride Processing for Low-Loss Integrated Photonics and Nonlinear OpticsH. Yan, S. Zhang, A. Pal, A. Ghosh, A. Alabbadi, M. Kheyri, T. Bi, Y. Zhang, I. Harder, O. Lohse, F. Gannott, A. Gumann, E. Butzen, K. Ludwig, and P. Del’Hayenpj Nanophoton. 3, 13 (Mar 2026)arXiv:2506.22595 (June 2025)Simulated optical mode in an aluminium nitride waveguide on sapphire with a silica cladding
  14. Fourth-harmonic UV light generation in integrated silicon nitride microresonatorsA. Ghosh, A. Pal, H. Yan, T. Bi, L. O. Trinchão, Q. Zhou, G. S. Wiederhecker, S. Zhang, and P. Del'HayearXiv:2603.03255 (Mar 2026)Camera image of a microresonator ring glowing violet from fourth-harmonic light
  15. Exceptional points preceding and enabling spontaneous symmetry breakingL. Hill, J. T. Gohsrich, A. Ghosh, J. Fauman, P. Del'Haye, and F. K. KunstCommun. Phys. 9, 58 (Jan 2026)arXiv:2505.02691Diagram of a system property splitting into two branches at spontaneous symmetry breaking, for systems in which the exceptional point coincides with the symmetry breaking
  16. Octave-spanning frequency comb from a single-diode-pumped 1 GHz Ti:sapphire laserE. Allan, A. Alabbadi, P. Castro-Marín, H. Ostapenko, P. Del’Haye, and D. T. ReidOpt. Lett. 51, 337 (Jan 2026)
  17. Phase Symmetry Breaking of Counterpropagating Light in Microresonators for Switches and Logic GatesA. Ghosh, A. Pal, S. Zhang, L. Hill, T. Bi, and P. Del’HayeLaser Photonics Rev. 20, e01500 (2026)arXiv:2407.16625Rendering of an optical logic gate: four ring resonators connected by waveguides on a chip

2025

  1. Scattering Induced Mode Chirality in Ring ResonatorsH. Yan, X. Guo, A. Pal, X. Huang, A. Ghosh, L. Hill, S. Zhang, N. Vishnukumar, T. Bi, M. Kheyri, J. Mai, H. Zhang, Y. Zhang, J. Xavier, H. Fan, K. W. Cheah, P. Littlewood, and P. Del'HayearXiv:2511.07133 (Nov 2025)
  2. Turnkey soliton frequency combs from a linear fiber cavity with microresonator mirrorH. Zhang, S. Zhang, T. Bi, Y. Zhang, H. Yan, M. Kheyri, Y. Zhuang, A. Pal, J. He, S. Pan, and P. Del’HayeOpt. Express 33, 46304 (Oct 2025)
  3. Polarization Faticons: Chiral Localized Structures in Self-Defocusing Kerr ResonatorsE. Lucas, G. Xu, P. Wang, G.-L. Oppo, L. Hill, P. Del'Haye, B. Kibler, Y. Xu, S. G. Murdoch, M. Erkintalo, S. Coen, and J. FatomePhys. Rev. Lett. 135, 063803 (Aug 2025)arXiv:2412.05116 (Dec 2024)
  4. Generation and Control of Higher-Order-Mode Lasers in Multimode Silicon ResonatorsH. Gao, A. Ghosh, A. Pal, K. Zhong, H. Yan, H. Zhang, Y. Zhuang, K. Xu, L. Sun, S. Zhang, P. Del’Haye, W. Bi, H. K. Tsang, and Y. ZhangACS Photonics 12, 3457 (July 2025)
  5. Monolithic electric field control of a grating coupler for finely tuning wavelength, efficiency, and bandwidthY. Zhang, Y. Zhuang, L. Yang, X. Liu, Q. Hu, H. Yan, H. Zhang, Y. Zhang, S. Zhang, P. Del’Haye, X. Wei, and Z. XuOpt. Lett. 50, 4370 (June 2025)
  6. Microresonator soliton frequency combs via cascaded Brillouin scatteringH. Zhang, S. Zhang, T. Bi, G. Ghalanos, Y. Zhang, H. Yan, A. Pal, J. He, S. Pan, and P. Del'HayeCommun. Phys. 8, 216 (May 2025)arXiv:2312.15506Schematic spectrum of comb generation by cascaded Brillouin scattering, with the pump and the Brillouin-laser mode families in different colours
  7. On-chip microresonator dispersion engineering via segmented sidewall modulationM. Kheyri, S. Zhang, T. Bi, A. Pal, H. Zhang, Y. Zhang, A. Alabbadi, H. Yan, A. Ghosh, L. Hill, P. Bianucci, E. Butzen, F. Gannott, A. Gumann, I. Harder, O. Ohletz, and P. Del’HayePhoton. Res. 13, 367 (Jan 2025)Rendering of a ring resonator with a rippled inner sidewall, in rainbow colours
  8. Integrated optical switches based on Kerr symmetry breaking in microresonatorsY. Zhang, S. Zhang, A. Ghosh, A. Pal, G. N. Ghalanos, T. Bi, H. Yan, H. Zhang, Y. Zhuang, L. Hill, and P. Del’HayePhoton. Res. 13, 360 (Jan 2025)Chip schematic of a racetrack resonator with light circulating clockwise, labelled 0

2024

  1. Near-Infrared Dual-Band Frequency Comb Generation from a Silicon ResonatorK. Zhong , Y. Zhang , S. Zhang , Y. Zhang , Y. Li , Y. Qin , Y. Wang , J. M. C. Boggio , X. Sun , C. Shu , P. Del'Haye , and H. K. TsangLaser Photonics Rev., 2301366 (Nov 2024)
  2. Linear and nonlinear coupling of light in twin-resonators with Kerr nonlinearityA. Pal, A. Ghosh, S. Zhang, L. Hill, H. Yan, H. Zhang, T. Bi, A. Alabbadi, and P. Del’HayePhoton. Res. 12, 2733 (Nov 2024)arXiv:2404.05646Rendering of two resonator rods coupled by fibres
  3. Frequency comb enhancement via the self-crystallization of vectorial cavity solitonsG. N. Campbell, L. Hill, P. Del’Haye, and G.-L. OppoOpt. Express 32, 37691 (Oct 2024)arXiv:2403.16547Illustration of the two circular polarization components of light and a ring resonator in which they form a stable pattern
  4. Controlled light distribution with coupled microresonator chains via Kerr symmetry breakingA. Ghosh, A. Pal, L. Hill, G. N. Campbell, T. Bi, Y. Zhang, A. Alabbadi, S. Zhang, and P. Del’HayePhoton. Res. 12, 2376 (Oct 2024)arXiv:2402.10673Two rows of five red ring resonators on a blue background, with the red glow varying along each row
  5. On-the-fly precision spectroscopy with a dual-modulated tunable diode laser and Hz-level referencing to a cavityS. Zhang, T. Bi, and P. Del’HayeAdvanced Photonics 6, 046003 (2024)arXiv:2303.14180SPIE News ArticleIllustration of a light wave shifting from red to violet over a grid, with a stopwatch dial under each peak
  6. Symmetry Broken Vectorial Kerr Frequency Combs from Fabry-Pérot ResonatorsL. Hill, E.-M. Hirmer, G. N. Campbell, T. Bi, A. Ghosh, P. Del’Haye, and G.-L. OppoCommun. Phys. 7 (Mar 2024)arXiv:2308.05039Schematic of a Kerr Fabry-Pérot cavity: laser input, two mirrors around a Kerr medium with counter-propagating light fields, and the output
  7. Real-time imaging of standing-wave patterns in microresonatorsH. Yan, A. Ghosh, A. Pal, H. Zhang, T. Bi, G. Ghalanos, S. Zhang, L. Hill, Y. Zhang, Y. Zhuang, J. Xavier, and P. Del'HayePNAS 121 (10) e2313981121arXiv:2401.07670Illustration of a disc resonator with a standing-wave pattern around its rim, sending out green and pink signal waves

2023

  1. Low-Temperature Sputtered Ultralow-Loss Silicon Nitride for Hybrid Photonic IntegrationS. Zhang, T. Bi, I. Harder, O. Lohse, F. Gannott, A. Gumann, E. Butzen, Y. Zhang and P. Del'HayeLaser & Photonics Reviews, 2300642 (2023)arXiv:2301.10758Diagram of sputter deposition of silicon nitride, an electron microscope image of a ring labelled "Sputtered Si3N4" and a soliton microcomb spectrum
  2. Geometry optimization for dark soliton combs in thin multimode silicon nitride microresonatorsY. Zhang, S. Zhang, T. Bi, and P. Del'HayeOpt. Express 31, 41420-41427 (2023)Illustration of a chip with a spiral waveguide
  3. Four-field symmetry breakings in twin-resonator photonic isomersA. Ghosh, L. Hill, G.-L. Oppo, and P. Del'HayePhys. Rev. Res. 5, L042012 (Oct 2023)arXiv:2305.03583Rendering of two coupled ring resonators next to a waveguide, with a green arrow for the input light
  4. Dark solitons in Fabry-Perot resonators with Kerr media and normal dispersionG. N. Campbell, L. Hill, P. Del'Haye, and G.-L. OppoPhys. Rev. A 108, 033505 (Sept 2023)arXiv:2306.02946Schematic of a Fabry-Pérot resonator filled with a Kerr medium, with the input field and a dark soliton dip in the intensity
  5. Multi-stage spontaneous symmetry breaking of light in Kerr ring resonatorsL. Hill, G.-L. Oppo, and P. Del'HayeCommun. Phys. 6 (Aug 2023)arXiv:2204.08837Schematic of a Kerr ring resonator with two inputs and outputs, with insets showing the polarization of the counter-propagating light fields
  6. Quintic Dispersion Soliton Frequency Combs in a MicroresonatorS. Zhang, T. Bi, and P. Del'HayeLaser & Photonics Reviews, 2300075 (2023)arXiv:2204.02383Laser & Photonics Reviews cover, October 2023: a ring resonator with colourful soliton waveforms stacked above it
  7. Electromagnetically induced transparency-like effect in a lithium niobate resonator via electronic controlL. Yang, Y. Zhuang, Y. Zhang, Y. Zhang, S. Zhang, Z. Xu, P. Del'Haye, and X. WeiPhotonics Research 11, 773-779 (2023)
  8. Machine learning assisted inverse design of microresonatorsA. Pal, A. Ghosh, S. Zhang, T. Bi, and P. Del’HayeOpt. Express 31, 8020-8028 (2023)arXiv:2212.03243Plot of dispersion versus wavelength for two microresonator geometries, one with anomalous and one with normal dispersion
  9. Proposal for a hybrid clock system consisting of passive and active optical clocks and a fully stabilized microcombD. Yu, F. Vollmer, P. Del’Haye, and S. ZhangOpt. Express 31, 6228-6240 (2023)

2022

  1. Kerr frequency combs: a million ways to fit light pulses into tiny ringsA. Coillet, S. Zhang, and P. Del'HayePhotoniques 113 (2022) 48-52arXiv:2302.144333D renderings of four Kerr comb states in a ring resonator: Turing rolls, chaos, a soliton and a breather
  2. Counterpropagating light in ring resonators: Switching fronts, plateaus, and oscillationsG. N. Campbell, S. Zhang, L. Del Bino, P. Del'Haye, and G.-L. OppoPhys. Rev. A 106, 043507 (Oct 2022)arXiv:2203.14375Schematic of a micro-ring resonator on a waveguide with counter-propagating red and blue light, and loops of the intracavity field powers above it
  3. A Kerr Polarization ControllerN. Moroney, L. Del Bino, S. Zhang, M. Woodley, L. Hill, T. Wildi, V. Wittwer, T. Südmeyer, G.-L. Oppo, M. Vanner, V. Brasch, T. Herr, and P. Del'HayeNat. Commun 13, 398arXiv:2104.13892Schematic of a cylinder guiding light, with a green wave entering and a red helical wave leaving
  4. Dark-Bright Soliton Bound States in a MicroresonatorS. Zhang, T. Bi, G. Ghalanos, N. Moroney, L. Del Bino, and P. Del’HayePhys. Rev. Lett. 128, 033901arXiv:2104.13351Electron microscope image of a disc resonator with red and blue curves showing a dark and a bright light pulse
  5. Generalized theory of optical resonator and waveguide modes and their linear and Kerr nonlinear couplingJ. Silver, and P. Del’HayePhys. Rev. Lett. A 105, 023517arXiv:2103.10479

2021

  1. Nonlinear Enhanced Microresonator GyroscopeJ. Silver, L. Del Bino, M. Woodley, G. Ghalanos, A. Svela, N. Moroney, S. Zhang, K. Grattan, P. Del'HayeOptica 8, 1219-1226arXiv:2001.05479Chip schematic of a ring resonator gyroscope with its waveguides
  2. Critical Dynamics of an Asymmetrically Bidirectionally Pumped Optical MicroresonatorJ. Silver, K. Grattan, and P. Del'HayePhys. Rev. Lett. A 104, 043511arXiv:1912.08262Plot of the circulating powers of two counter-propagating fields versus detuning, with the bifurcation points marked
  3. Self-Switching Kerr Oscillations of Counterpropagating Light in MicroresonatorsM. Woodley, L. Hill, L. Del Bino, G.-L. Oppo, and P. Del’HayePhys. Rev. Lett. 126, 043901arXiv:2005.01411Glowing ring of light on a black background, with an orange arrow for the circulating light
  4. Optical memories and switching dynamics of counterpropagating light states in microresonatorsL. Del Bino, N. Moroney, and P. Del’HayeOpt. Express 29, 2193-2203arXiv:2002.02954Schematic of an optical memory: a ring resonator storing 1 or 0 as clockwise or counter-clockwise light, with set and reset ports and power traces

2020

  1. Spectral Extension and Synchronisation of Microcombs in a Single MicroresonatorS. Zhang, J. Silver, T. Bi, and P. Del'HayeNature Communications 11, 6384 (2020)arXiv:2002.06168Two optical spectra from 1300 to 1800 nm: a two-soliton spectrum in red (a) and a single-soliton spectrum in blue (b)
  2. Coherent suppression of backscattering in optical microresonatorsA. Svela, J. Silver, L. Del Bino, S. Zhang, M. Woodley, M. Vanner, and P. Del'HayeNature, Light Science and Applications 9, 204 (2020)arXiv:2002.12379Photo of a glass rod resonator with a thin electrochemically etched tungsten tip near its edge
  3. Kerr-Nonlinearity-Induced Mode-Splitting in Optical MicroresonatorsG. Ghalanos, J. Silver, L. Del Bino, N. Moroney, S. Zhang, M. Woodley, A. Svela, and P. Del’HayePhysical Review Letters 124, 223901arXiv:2101.10170Transmission spectra at 13 mW and 56 mW pump power for co- and counter-propagating probes, next to a sketch of the setup
  4. Logic Gates Based on Interaction of Counterpropagating Light in MicroresonatorsN. Moroney, L. Del Bino, M. Woodley, G. Ghalanos, J. Silver, A Svela, S. Zhang, and P. Del’HayeJ. Lightwave Technol. 38, 1414-1419arXiv:2004.13578Schematic of a ring resonator between two waveguides with the ports A, B and Out, and the light pulses at each port
  5. Effects of self- and cross-phase modulation on the spontaneous symmetry breaking of light in ring resonatorsL. Hill, G.-L. Oppo, M. Woodley, and P. Del'HayePhys. Rev. A 101, 013823arXiv:1905.01119Plot of the coupled powers of two light fields oscillating in red and blue over time

2019

  1. Terahertz wave generation using a soliton microcombS. Zhang, J. Silver, X. Shang, L. Del Bino, N. Ridler, and P. Del'HayeOptics Express 27 (24), 35257-35266arXiv:1908.11798Electron micrograph of a silica microtoroid resonator, with a 50 µm scale bar
  2. Thermo-optical pulsing in a microresonator filtered fiber-laser: a route towards all-optical control and synchronizationM. Rowley, B. Wetzel, L. Di Lauro, J.S. Totero Gongora, H. Bao, J. Silver, L. Del Bino, P. Del'Haye, M. Peccianti, and A. PasquaziOptics Express 27, 19242-19254arXiv:1903.09095Photo of a red laser line passing a glass microrod resonator on a black background, with the tapered fibre labelled
  3. Sub-milliwatt-level microresonator solitons with extended access range using an auxiliary laserS. Zhang, J.M. Silver, L. Del Bino, F. Copie, M.T.M. Woodley, G. Ghalanos, A. Svela, N. Moroney and P. Del'HayeOptica 6, 206-212arXiv:1809.10030Schematic of a microring coupled to a waveguide, with 1.5 µm and 1.3 µm input light and soliton pulses at the output
  4. Interplay of Polarization and Time-Reversal Symmetry Breaking in Synchronously Pumped Ring ResonatorsF. Copie, M.T.M. Woodley, L. Del Bino, J.M. Silver, S. Zhang and Pascal Del'HayePhysical Review Letters 122, 013905arXiv:1807.02347Schematic of a ring resonator pumped by a pulse train and the three possible outcomes (polarization, temporal, and both symmetry breakings), drawn as pulse trains of two polarizations
  5. Observation of Brillouin optomechanical strong coupling with an 11 GHz mechanical modeG. Enzian, M. Szczykulska, J. Silver, L. Del Bino, S. Zhang, I. A. Walmsley, P. Del'Haye and M. R. VannerOptica 6, 7-14arXiv:1808.07115Colour plot on a dark blue background with two curved bright bands from orange to yellow

2018

  1. Universal Symmetry Breaking Dynamics for the Kerr Interaction of Counter-Propagating Light in Dielectric Ring ResonatorsM.T.M. Woodley, J.M. Silver, L. Hill, F. Copie, L. Del Bino, S. Zhang, G.-L. Oppo and Pascal Del'HayePhysical Review A, 98, 053863arXiv:1811.08787Schematic of a laser split into two paths that pump a ring resonator from both sides; with broken symmetry one direction carries more power than the other
  2. Uniform Thin Films on Optical Fibers by Plasma-Enhanced Chemical Vapor Deposition: Fabrication, Mie Scattering Characterization, and Application to MicroresonatorsZ. Naqvi, M. Green, K. Smith, C. Wang, P. Del'Haye, T. HerJournal of Lightwave Technology 36, 5580-5586 (Dec 2018)
  3. Microresonator Isolators and Circulators Based on the Intrinsic Nonreciprocity of the Kerr EffectL. Del Bino, J.M. Silver, M.T.M. Woodley, S.L. Stebbings, X. Zhao and Pascal Del'HayeOptica 5, Issue 3, pp. 279-282 (March 2018)Schematic of a ring resonator between two waveguides on a chip, with green arrows showing the light paths
  4. Micro-Combs: a Novel Generation of Optical SourcesPasquazi, M. Peccianti, L. Razzari, D.J. Moss, S. Coen, M. Erkintalo, Y.K. Chembo, T. Hansson, S. Wabnitz, P. Del'Haye, X. Xue, A.M. Weiner, R. MorandottiPhysics Reports, 729, 1-81 (Jan 2018)

2017

  1. Soliton crystals in Kerr resonatorsD. Cole, E. Lamb, P. Del’Haye, S.A. Diddams, S.B. PappNature Photonics 11, 671–676 (Sept 2017)Schematic of soliton crystal generation: a tunable laser pumps a microresonator in which regularly spaced pulses circulate
  2. Kerr Superoscillator Model for Microresonator Frequency CombsJ.M. Silver, C. Guo, L. Del Bino, S. Stebbings and Pascal Del'HayePhys. Rev. A 95, 033835 (Mar 2017)Illustration of a laser beam passing a microresonator with parametric gain and leaving as a rainbow-coloured optical frequency comb
  3. Symmetry Breaking of Counter-Propagating Light in a Nonlinear ResonatorL. Del Bino, J.M. Silver, S.L. Stebbings and Pascal Del’HayeScientific Reports 7, 43142 (Feb 2017)Photograph of a glass rod resonator lit up in red, with a tapered optical fibre carrying the laser light across it
  4. Self-synchronization phenomena in the Lugiato-Lefever equationH. Taheri, P. Del'Haye, A.A. Eftekhar, K. Wiesenfeld, A. AdibiPhys. Rev. A 96, 013828 (July 2017)Colour maps of simulated comb-mode phases and intensities over time, showing the phases locking again
  5. Electronic synthesis of lightK. Beha, D. Cole, P. Del’Haye, A. Coillet, S.A. Diddams, S.B. PappOptica 4, Issue 4, pp. 406-411 (March 2017)

2016

  1. Phase-coherent microwave-to-optical link with a self-referenced microcombP. Del’Haye, A. Coillet, T. Fortier, K. Beha, D. Cole, K. Yang, H. Lee, K. Vahala, S. Papp, S. DiddamsNature Photonics 10, 516–520 (June 2016)Photograph of the 4 mm silica disk resonator, with a 2 mm scale bar
  2. Roadmap on Ultrafast OpticsD.T. Reid, C.M. Heyl, R.R. Thomson, R. Trebino, H. Fielding, Z. Zhang, P. Del'Haye, T. Suedmeyer, G. Mourou, T. Tajima, D. Faccio, F. Harren, G. CerulloJournal of Optics 18, 9 (Aug 2016)
  3. Broadband dispersion engineered microresonator on-a-chipK. Yang, K. Beha, D. Cole, X. Yi, P. Del'Haye, H. Lee, J. Li, D. Oh, S.A. Diddams, S.B. Papp, K.J. VahalaNature Photonics 10, 316-320 (March 2016)Simulated optical modes in a wedge resonator and in an optical fibre at wavelengths of 1000, 1500 and 2000 nm

2015 and earlier

  1. Phase Steps and Resonator Detuning Measurements in Microresonator Frequency CombsP. Del’Haye, A. Coillet, W. Loh, K. Beha, S.B. Papp, S.A. DiddamsNature Communications, 6, 5668 (Jan 2015)Measured spectra of phase-locked microresonator combs, with groups of comb lines highlighted in different colours
  2. Phase and coherence of optical microresonator frequency combsW. Loh, P. Del’Haye, S.B. Papp, S.A. DiddamsPhysical Review A 89, 053810 (May 2014)
  3. Microresonator frequency comb optical clockS.B. Papp, K. Beha, P. Del’Haye, F. Quinlan, H. Lee, K.J. Vahala, S.A. DiddamsOptica 1, 10-14 (July 2014)Electron micrograph of the silica disk resonator, with a 2 mm scale arrow
  4. Self-Injection Locking and Phase-Locked States in Microresonator-Based Optical Frequency CombsP. Del’Haye, K. Beha, S.B. Papp, S.A. DiddamsPhysical Review Letters 112, 043905 (Jan. 2014)Two measured comb spectra: without (red) and with (green) overlapping, phase-locked sub-combs
  5. Parametric seeding of a microresonator optical frequency combS.B. Papp, P. Del’Haye, S.A. DiddamsOptics Express 21 17615-17624 (July 2013)Diagram of comb lines from parametric oscillation and four-wave mixing around the pump, with electro-optic sidebands as the seed
  6. Laser-Machined Ultra-High-Q Microrod Resonators for Nonlinear OpticsP. Del’Haye, S.A. Diddams, S.B. PappAppl. Phys. Lett. 102, 221119 (June 2013)Photograph of fused-quartz microrod resonators with diameters from 170 µm to 8 mm in front of a ruler
  7. Mid-Infrared Optical Frequency Combs at 2.5 µm based on Crystalline MicroresonatorsC. Wang, T. Herr, P. Del’Haye, A. Schliesser, R. Holzwarth, T.W. Hänsch, N. Picqué and T.J. KippenbergNature Communications 4, 1345 (Jan. 2013)Photograph of a magnesium fluoride resonator with a diameter of 700 µm
  8. Hybrid Electro-Optically Modulated MicrocombsP. Del’Haye, S.B. Papp, S.A. DiddamsPhysical Review Letters 109, 263901 (Dec. 2012)Diagram of microcomb lines (blue) with the gaps between them filled by electro-optic modulator sidebands (red)
  9. Mechanical Control of a Microrod-Resonator Optical Frequency CombS.B. Papp, P. Del’Haye, S.A. DiddamsPhysical Review X 3, 031003 (July 2013)Photograph of a fused-quartz microrod resonator machined into a glass rod
  10. Large Bandwidth from a tiny DeviceP. Del’Haye, R. Holzwarth and T.J. KippenbergSPIE Newsroom, 10.1117/2.1201110.003910 (Nov. 2011)
  11. Octave Spanning Tunable Frequency Comb from a MicroresonatorP. Del’Haye, T. Herr, E. Gavartin, R. Holzwarth and T.J. KippenbergPhysical Review Letters 107, 063901 (Aug. 2011)Optical spectrum of a microresonator frequency comb spanning more than an octave, from about 1000 nm to 2300 nm
  12. Frequency comb assisted diode laser spectroscopy for measurement of microcavity dispersionP. Del’Haye, O. Arcizet, M.L. Gorodetsky, R. Holzwarth and T.J. KippenbergNature Photonics 3, 529-533 (Aug. 2009)"Clever Calibration"Diagram of a tunable diode laser scanning across the lines of a frequency comb, with two band-pass filters selecting beat notes
  13. A chip-scale microwave repetition rate frequency combP. Del’Haye, O. Arcizet, A. Schliesser, R. Holzwarth and T.J. KippenbergProceedings of SPIE 7222, 722209 (Jan. 2009)
  14. Full stabilization of a microresonator-based optical frequency combP. Del’Haye, O. Arcizet, A. Schliesser, R. Holzwarth and T.J. KippenbergPhysical Review Letters 101, 053903 (Aug. 2008)Photograph of a silicon chip with a row of microresonators, and the measured comb spectrum with 86 GHz line spacing
  15. Optical frequency comb generation from a monolithic microresonatorP. Del’Haye, A. Schliesser, O. Arcizet, T. Wilken, R. Holzwarth and T.J. KippenbergNature 450, 1214-1217 (Dec. 2007)"New Generation of Combs"Optical spectrum of a frequency comb from a monolithic toroid microresonator, with a wider spectrum as inset
  16. Radiation-pressure-driven vibrational modes in ultrahigh-Q silica microspheresR. Ma, A. Schliesser, P. Del’Haye, A. Dabirian, G. Anetsberger and T.J. KippenbergOptics Letters 32, 2200-2202 (Aug. 2007)Electron micrograph of a silica microsphere on a thin stem
  17. Radiation pressure cooling of a micromechanical oscillator using dynamical backactionSchliesser, P. Del’Haye, N. Nooshi, K.J. Vahala and T.J. KippenbergPhysical Review Letters 97, 243905 (Dec. 2006)Electron micrograph of a toroid microresonator, with a simulated mechanical mode and the radiation-pressure force