80Gb/s All-optical logic AND operation using Mach-Zehnder interferometer with differential scheme

All-optical negabinary adders using Mach–Zehnder interferometer

“…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]. Fig.…”

“…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.…”

“…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]. Attractive features of SOA-MZI such as the extremely high operational speed, tremendous potential for integration with a wide variety of active and passive components, low power consumption, and high stability motivate researchers to realize various all-optical logic gates such as XOR, OR, and NOR.…”

On the Feasibility of 320 Gb/S All-Optical and Gate Using Quantum-Dot Semiconductor Optical Amplifier-Based Mach-Zehnder Interferometer

“…Given its important, multi-lateral role the AND gate has attracted intense research interest and among the technological options that exist for its implementation those that exploit a semiconductor optical amplifier (SOA) are well established [17]. In fact, besides being employed for classical applications such as signal generation [18], amplification [19] and modulation [20], SOAs have also demonstrated their potential as nonlinear switching elements for performing all-optical AND logic, either as stand-alone entities [21][22][23][24][25][26][27] or incorporated in an interferometric configuration [28][29][30][31][32].…”

Designing of an all-optical scheme for single input ternary logical operations

“…binary coded ternary representation [6], optical shadow casting scheme [7], fringe-shifting technique [8], etc. In recent years, high speed ultrafast optical switches have brought the revolution in the field of optical communication and information processing systems [11][12][13][14][15][16][17][18][19][20][21][22]. Polarization encoded all-optical logic for optical network is an exciting field of research where we can expect much innovation [23][24][25][26][27][28].…”