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Radically Tunable Ultrafast Photonic Oscillators via Differential Pumping
Yannis Kominis, Anastassios Bountis, Vassilios Kovanis
We present the controllability capabilities for the limit cycles of an extremely tunable photonic oscillator, consisting of two coupled semiconductor lasers. We show that this syst…
Enhanced stability, bistability, and exceptional points in saturable active photonic couplers
Yertay Zhiyenbayev, Yannis Kominis, Constantinos Valagiannopoulos +2
A generic photonic coupler with active and lossy parts, gain saturation and asymmetric characteristics is examined. Saturable activity is shown to be able to enhance the overall st…
Metasurface-Enabled Interference Suppression at Visible-Light Communications
Constantinos Valagiannopoulos, Theodoros A. Tsiftsis, Vassilios Kovanis
Light can be used for wireless information transmission apart from illumination; that is the key idea behind visible-light communication (VLC), one of the disruptive technologies o…