Coherent control of flexural vibrations in dual-nanoweb fibers using phase-modulated two-frequency light

J. R. Koehler, R. E. Noskov, A. A. Sukhorukov, D. Novoa, and P. St. J. Russell
Phys. Rev. A 96, 063822 – Published 18 December 2017

Abstract

Coherent control of the resonant response in spatially extended optomechanical structures is complicated by the fact that the optical drive is affected by the backaction from the generated phonons. Here we report an approach to coherent control based on stimulated Raman-like scattering, in which the optical pressure can remain unaffected by the induced vibrations even in the regime of strong optomechanical interactions. We demonstrate experimentally coherent control of flexural vibrations simultaneously along the whole length of a dual-nanoweb fiber, by imprinting steps in the relative phase between the components of a two-frequency pump signal, the beat frequency being chosen to match a flexural resonance. Furthermore, sequential switching of the relative phase at time intervals shorter than the lifetime of the vibrations reduces their amplitude to a constant value that is fully adjustable by tuning the phase modulation depth and switching rate. The results may trigger new developments in silicon photonics, since such coherent control uniquely decouples the amplitude of optomechanical oscillations from power-dependent thermal effects and nonlinear optical loss.

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  • Received 14 June 2017

DOI:https://doi.org/10.1103/PhysRevA.96.063822

©2017 American Physical Society

Physics Subject Headings (PhySH)

Nonlinear DynamicsAtomic, Molecular & Optical

Authors & Affiliations

J. R. Koehler1, R. E. Noskov1, A. A. Sukhorukov2,1, D. Novoa1, and P. St. J. Russell1

  • 1Max Planck Institute for the Science of Light, Staudtstrasse 2, 91058 Erlangen, Germany
  • 2Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT 2601, Australia

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Vol. 96, Iss. 6 — December 2017

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