We consider the asymmetric active coupler (AAC) consisting of two coupled dissimilar waveguides with
gain and loss. We show that under generic conditions, not restricted by parity-time symmetry, there
exist finite-power, ...
Coupled semiconductor lasers are systems possessing complex dynamics that are interesting for
numerous applications in photonics. In this work, we investigate the existence and the stability of
asymmetric phase-locked ...
Kominis, Yannis; Choquette, Kent D.; Bountis, Anastassios; Kovanis, Vassilios(arXiv, 2018-06)
We show the abundance of Exceptional Points in the generic asymmetric configuration of two
coupled diode lasers, under nonzero optical detuning and differential pumping. We pinpoint the
location of these points with ...
The fundamental active photonic dimer consisting of two coupled quantum well lasers is inves-
tigated in the context of the rate equation model. Spectral transition properties and exceptional
points are shown to occur ...
Kominis, Yannis; Bountis, Tassos; Flach, Sergej(Physical Review A, 2017-06-21)
We analyze the stability of a non-Hermitian coupler with respect to modulational inhomogeneous perturbations
in the presence of unbalanced gain and loss. At the parity-time (PT ) symmetry point the coupler is unstable.
Suitable ...
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