Phase Symmetry Breaking of Counterpropagating Light in Microresonators for Switches and Logic Gates

The rapidly growing field of integrated photonics is enabling a large number of novel devices for optical data processing, neuromorphic computing and circuits for quantum photonics. While many photonic devices are based on linear optics, nonlinear responses at low threshold power are of high interes...

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Bibliographic Details
Published in:arXiv.org 2024-07
Main Authors: Ghosh, Alekhya, Pal, Arghadeep, Zhang, Shuangyou, Hill, Lewis, Bi, Toby, Del'Haye, Pascal
Format: Article
Language:English
Subjects:
Broken symmetry
Logic circuits
Nonlinear response
Optical data processing
Optical switching
Photonics
Resonators
Switches
Threshold gates
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Summary:The rapidly growing field of integrated photonics is enabling a large number of novel devices for optical data processing, neuromorphic computing and circuits for quantum photonics. While many photonic devices are based on linear optics, nonlinear responses at low threshold power are of high interest for optical switching and computing. In the case of counterpropagating light, nonlinear interactions can be utilized for chip-based isolators and logic gates. In our work we find a symmetry breaking of the phases of counterpropagating light waves in high-Q ring resonators. This abrupt change in the phases can be used for optical switches and logic gates. In addition to our experimental results, we provide theoretical models that describe the phase symmetry breaking of counterpropagating light in ring resonators.
ISSN:2331-8422