title: All-optical half adder using cross gain modulation in semiconductor optical amplifiers.
abstract: By using the gain nonlinearity characteristics of semiconductor optical amplifier, an all-optical binary half adder at 10 Gbps is demonstrated. The half adder operates in a single mechanism, which is cross gain modulation. The half adder utilizes two logic functions of SUM and CARRY, which can be demonstrated by using XOR and AND gates, respectively. The extinction ratios of both XOR and AND gates are about 6.1 dB. By achieving this experiment, we also explored the possibilities for the enhanced complex logic operation and higher chances for multiple logic integration.
authors.forename: Sang Hun
authors.initials: SH
authors.lastname: Kim
authors.forename: Jae Hun
authors.initials: JH
authors.lastname: Kim
authors.forename: Jae Won
authors.initials: JW
authors.lastname: Choi
authors.forename: Chang Wan
authors.initials: CW
authors.lastname: Son
authors.forename: Young Tae
authors.initials: YT
authors.lastname: Byun
authors.forename: Young Min
authors.initials: YM
authors.lastname: Jhon
authors.forename: Seok
authors.initials: S
authors.lastname: Lee
authors.forename: Deck Ha
authors.initials: DH
authors.lastname: Woo
authors.forename: Sun Ho
authors.initials: SH
authors.lastname: Kim