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Exceptional points in fiber optomechanics

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Abstract

We report the first realization of an anti-parity-time symmehic optical potential supporting a 2nd- order exceptional point in standard optical fibers. Phase-transition, symmehy-breaking and coalescence of supeimodes are observed when Brillouin optomechanical coupling exceeds the wavenumber-mismatch.

© 2020 The Author(s)

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More Like This
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