Microresonators

Microresonators are micrometre-scale structures for confining light. Light is reflected internally at the edges of the resonator. This creates a series of standing-wave optical modes, or resonances, similar to those that can exist on a vibrating guitar string. Microresonators can provide the optical feedback required in semiconductor lasers.

Latest Research and Reviews

  • Research | | open

    Chip-based frequency combs promise many applications, but full integration requires the electrical pump source and the microresonator to be on the same chip. Here, the authors show such integration of a microcomb with < 100 GHz mode spacing without additional filtering cavities or on-chip heaters.

    • Arslan S. Raja
    • , Andrey S. Voloshin
    • , Hairun Guo
    • , Sofya E. Agafonova
    • , Junqiu Liu
    • , Alexander S. Gorodnitskiy
    • , Maxim Karpov
    • , Nikolay G. Pavlov
    • , Erwan Lucas
    • , Ramzil R. Galiev
    • , Artem E. Shitikov
    • , John D. Jost
    • , Michael L. Gorodetsky
    •  & Tobias J. Kippenberg
  • Research |

    Efficient photon pair sources connecting visible and telecommunication spectral regions are essential for viable long-distance fibre optic quantum communication architectures. A nanophotonic device is presented that allows kilometre-scale time–energy entanglement as an application.

    • Xiyuan Lu
    • , Qing Li
    • , Daron A. Westly
    • , Gregory Moille
    • , Anshuman Singh
    • , Vikas Anant
    •  & Kartik Srinivasan
  • Research |

    A microphotonic astrocomb is demonstrated via temporal dissipative Kerr solitons in photonic-chip-based silicon nitride microresonators with a precision of 25 cm s–1 (radial velocity equivalent), useful for Earth-like planet detection and cosmological research.

    • Ewelina Obrzud
    • , Monica Rainer
    • , Avet Harutyunyan
    • , Miles H. Anderson
    • , Junqiu Liu
    • , Michael Geiselmann
    • , Bruno Chazelas
    • , Stefan Kundermann
    • , Steve Lecomte
    • , Massimo Cecconi
    • , Adriano Ghedina
    • , Emilio Molinari
    • , Francesco Pepe
    • , François Wildi
    • , François Bouchy
    • , Tobias J. Kippenberg
    •  & Tobias Herr
    Nature Photonics 13, 31-35
  • Research |

    The creation and manipulation of large quantum states is necessary for quantum information processing tasks. Three-level, four-partite cluster states have now been created in the time and frequency domain of two photons on-chip.

    • Christian Reimer
    • , Stefania Sciara
    • , Piotr Roztocki
    • , Mehedi Islam
    • , Luis Romero Cortés
    • , Yanbing Zhang
    • , Bennet Fischer
    • , Sébastien Loranger
    • , Raman Kashyap
    • , Alfonso Cino
    • , Sai T. Chu
    • , Brent E. Little
    • , David J. Moss
    • , Lucia Caspani
    • , William J. Munro
    • , José Azaña
    • , Michael Kues
    •  & Roberto Morandotti
    Nature Physics 15, 148-153

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