Photonic Cavity Synchronization of Nanomechanical Oscillators

Mahmood Bagheri, Menno Poot, Linran Fan, Florian Marquardt, and Hong X. Tang
Phys. Rev. Lett. 111, 213902 – Published 21 November 2013
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Abstract

Synchronization in oscillatory systems is a frequent natural phenomenon and is becoming an important concept in modern physics. Nanomechanical resonators are ideal systems for studying synchronization due to their controllable oscillation properties and engineerable nonlinearities. Here we demonstrate synchronization of two nanomechanical oscillators via a photonic resonator, enabling optomechanical synchronization between mechanically isolated nanomechanical resonators. Optical backaction gives rise to both reactive and dissipative coupling of the mechanical resonators, leading to coherent oscillation and mutual locking of resonators with dynamics beyond the widely accepted phase oscillator (Kuramoto) model. In addition to the phase difference between the oscillators, also their amplitudes are coupled, resulting in the emergence of sidebands around the synchronized carrier signal.

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  • Received 3 June 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.213902

© 2013 American Physical Society

Authors & Affiliations

Mahmood Bagheri1, Menno Poot1, Linran Fan1, Florian Marquardt2,3, and Hong X. Tang1,*

  • 1Department of Electrical Engineering, Yale University, New Haven, Connecticut 06511, USA
  • 2Institute for Theoretical Physics II, Universität Erlangen-Nürnberg, Staudstraße 7, 91058 Erlangen, Germany
  • 3Max Planck Institute for the Science of Light, Günther-Scharowsky-Straße 1/Bau 24, D-91058 Erlangen, Germany

  • *To whom all correspondence should be addressed. hong.tang@yale.edu

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Vol. 111, Iss. 21 — 22 November 2013

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