title: All-optical binary counter.
abstract: We experimentally demonstrate an all-optical binary counter composed of four semiconductor optical amplifier based all-optical switching gates. The time-of-flight optical circuit operates with bit-differential delays between the exclusive-OR gate used for modulo-2 binary addition and the AND gate used for binary carry detection. A movie of the counter operating in real time is presented.
authors.forename: A
authors.initials: A
authors.lastname: Poustie
authors.forename: R
authors.initials: R
authors.lastname: Manning
authors.forename: A
authors.initials: A
authors.lastname: Kelly
authors.forename: K
authors.initials: K
authors.lastname: Blow