All-optical logic AND–NOR gate with three inputs based on cross-gain modulation in a semiconductor optical amplifier

All-optical negabinary adders using Mach–Zehnder interferometer

“…The new developments in nonlinear materials make achievement of all-optical logic elements possible. For instance, the fast nonlinear characteristics of SOAs and its minimal space requirements and integration capability play an increasingly important role in the advancement of optical components and are very attractive for applications in optical signal processing [11][12][13][14][15][16]. Further, optical gates based on Mach-Zehnder interferometric (MZI) and SOA as the nonlinear element have attracted many researchers interests for which many all-optical XOR, OR, NOR, and NAND logic gates were reported [17][18][19][20][21].…”

“…For the last three decades, developing parallel algorithms and/or architecture, which are most suitable for hybrid optoelectronics implementations were extensively explored. Nowadays, many researchers are even exploring all-optical implementations to avoid or eliminate the need to convert the optical signals to electronics signals and back to optical signals [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. The new motivation is mainly due to the development in nonlinear optical materials, which provide the major support for ultra-fast alloptical switches.…”

“…The new motivation is mainly due to the development in nonlinear optical materials, which provide the major support for ultra-fast alloptical switches. For instance, schemes such as ultra-fast nonlinear interferometric and interferometric wavelength converters, nonlinear optical loop mirror (NLOM), semiconductor optical amplifier (SOA) waveguide based on a Michelson interferometer (MI), and terahertz optical asymmetric demultiplexing (TOAD) were reported [7][8][9][10][11][12][13][14][15]. Further, optical gates based on MachZehnder interferometric (MZI) including SOA as the nonlinear element have attracted many interests due to its practical advantages [16][17][18][19][20].…”

Circuit designs of ultra-fast all-optical modified signed-digit adders using semiconductor optical amplifier and Mach–Zehnder interferometer

“…Nonlinear optical material provides the major support to optical switching, which is the base of all-optical logic and algebraic processing. For instance, schemes such as nonlinear optical loop mirror (NLOM), terahertz optical asymmetric demultiplexing (TOAD), semiconductor optical amplifier (SOA) waveguide based on a Michelson interferometer (MI), ultrafast nonlinear interferometric and interferometric wavelength converters were reported [26][27][28][29][30][31][32][33][34]. Further, optical gates based on Mach-Zehnder interferometric (MZI) and SOA as the nonlinear element have attracted much interest due to practical advantages [35][36][37][38][39][40].…”

All-optical Data Extraction Based on Optical Logic Gates

“…In this paper, the suggested optical system based on SOAs shows the potential for high speed, and highly integrable and low power optical data computing. [4][5][6][7][8][9] . 지는 실제 시스템에 적용 가능한 기술들의 충분한 확보가 미 흡한 실정이다 [10][11][12][13] .…”