Self-Switching Kerr Oscillations of Counterpropagating Light in Microresonators

We report the experimental and numerical observation of oscillatory antiphase switching between counterpropagating light beams in Kerr ring microresonators, where dominance between the intensities of the two beams is periodically or chaotically exchanged. Self-switching occurs in balanced regimes of...

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Bibliographic Details
Published in:Physical review letters 2021-01, Vol.126 (4), p.043901-043901, Article 043901
Main Authors: Woodley, Michael T M, Hill, Lewis, Del Bino, Leonardo, Oppo, Gian-Luca, Del'Haye, Pascal
Format: Article
Language:English
Subjects:
Broken symmetry
Cryptography
Light beams
Luminous intensity
Optical communication
Robust control
Signal encoding
Signal generation
Switching
Waveforms
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Summary:We report the experimental and numerical observation of oscillatory antiphase switching between counterpropagating light beams in Kerr ring microresonators, where dominance between the intensities of the two beams is periodically or chaotically exchanged. Self-switching occurs in balanced regimes of operation and is well captured by a simple coupled dynamical system featuring only the self- and cross-phase Kerr nonlinearities. Switching phenomena are due to temporal instabilities of symmetry-broken states combined with attractor merging, which restores the broken symmetry on average. Self-switching of counterpropagating light is robust for realizing controllable, all-optical generation of waveforms, signal encoding, and chaotic cryptography.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.126.043901