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All-optical directional switching in bistable semiconductor-ring lasers

Trita, Andrea and Mezosi, Gabor and Latorre-Vidal, Maria Jose and Zanola, Marco and Strain, Michael and Bragheri, Francesca and Sorel, Marc and Giuliani, Guido (2013) All-optical directional switching in bistable semiconductor-ring lasers. IEEE Journal of Quantum Electronics, 49 (10). pp. 877-885. ISSN 0018-9197

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Abstract

We investigate the operation of directionally bistable semiconductor-ring lasers as all-optical flip-flops. We demonstrate fast switching between the two lasing directions by injection of optical pulses acting as set and reset control signals with switching times as fast as 20 ps, delay times as short as 60 ps, and switching energy of 150 fJ.