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All-Optical Flip-Flop Based on an SOA/DFB-Laser Diode Optical Feedback Scheme

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5 Author(s)
D'Oosterlinck, W. ; Dept. of Inf. Technol., Ghent Univ, Gent ; Buron, J. ; Ohman, F. ; Morthier, G.
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We report on the dynamic all-optical flip-flop (AOFF) operation of an optical feedback scheme consisting of a semiconductor optical amplifier (SOA) and a distributed feedback laser diode (DFB-LD), bidirectionally coupled to each other. The operation of the AOFF relies on the interplay between the optical powers in both the DFB-LD and the SOA. Switching times as low as 150ps for switch pulse energies of around 6 pJ and a repetition rate of 500MHz have been measured. The contrast ratio was measured to be above 12 dB

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 7 )