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All-Optical Directional Switching in Bistable Semiconductor-Ring Lasers

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8 Author(s)
Andrea Trita ; Department of Information Technology, Ghent University, Interuniversity Microelectronics Centre, Gent, Belgium ; Gabor Mezõsi ; Maria Jose Latorre-Vidal ; Marco Zanola
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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.

Published in:

IEEE Journal of Quantum Electronics  (Volume:49 ,  Issue: 10 )