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Proceedings Paper

Time-domain response to ps optical pulse trigger of an all-optical flip-flop based on semiconductor ring laser
Author(s): Andrea Trita; Sandor Furst; Gabor Mezosi; Marc Sorel; Maria Jose Latorre Vidal; Jin Yu; Francesca Bragheri; Ilaria Cristiani; Guido Giuliani
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Paper Abstract

Monolithic Semiconductor Ring Lasers (SRLs) are promising devices for all-optical memory and all-optical switching applications, as they can operate in a directional bistable regime where only one directional mode (clockwise or anti-clockwise) is active at one time. The unidirectional bistable regime can be naturally associated to a binary logic, and the SRL represents an elementary digital memory cell that can be written all-optically, realising the function of an all-optical flip-flop. In fact, the direction of operation can be switched by injecting an external optical signal pulse into the SRL through one of the 4 input/output ports. Directional switching of the SRL-based all-optical flip-flop has been demonstrated by injecting optical pulses with 5 ps duration into one of the four input/output ports. The required switching energy is around 100 fJ, and the swiching time is between 100 and 200 ps. The same function has been demonstrated by injecting 400 ps pulses as optical trigger.

Paper Details

Date Published: 8 May 2008
PDF: 6 pages
Proc. SPIE 6997, Semiconductor Lasers and Laser Dynamics III, 699724 (8 May 2008); doi: 10.1117/12.783928
Show Author Affiliations
Andrea Trita, Univ. degli Studi di Pavia (Italy)
Sandor Furst, Univ. of Glasgow (United Kingdom)
Gabor Mezosi, Univ. of Glasgow (United Kingdom)
Marc Sorel, Univ. of Glasgow (United Kingdom)
Maria Jose Latorre Vidal, Univ. degli Studi di Pavia (Italy)
Jin Yu, Univ. degli Studi di Pavia (Italy)
Francesca Bragheri, Univ. degli Studi di Pavia (Italy)
Ilaria Cristiani, Univ. degli Studi di Pavia (Italy)
Guido Giuliani, Univ. degli Studi di Pavia (Italy)

Published in SPIE Proceedings Vol. 6997:
Semiconductor Lasers and Laser Dynamics III
Krassimir P. Panajotov; Marc Sciamanna; Angel A. Valle; Rainer Michalzik, Editor(s)

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