Spectral signatures of exceptional points and bifurcations in the fundamental active photonic dimer

Yannis Kominis, Vassilios Kovanis, Tassos Bountis

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Abstract

The fundamental active photonic dimer consisting of two coupled quantum well lasers is investigated in the context of the rate-equation model. Spectral transition properties and exceptional points are shown to occur under general conditions, not restricted by parity-time symmetry as in coupled-mode models, suggesting a paradigm shift in the field of non-Hermitian photonics. The optical spectral signatures of system bifurcations and exceptional points are manifested in terms of self-termination effects and observable drastic variations of the spectral line shape that can be controlled in terms of optical frequency detuning and inhomogeneous pumping.

Original languageEnglish
Article number053837
JournalPhysical Review A
Volume96
Issue number5
DOIs
Publication statusPublished - Nov 17 2017

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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