All-Optical Logic Gates: Designs, Classification, and Comparison

Singh, Pallavi; Tripathi, Dulal Krishna; Jaiswal, Shikha; Dixit, H.K.

doi:10.1155/2014/275083

Cited by 97 publications

(53 citation statements)

References 67 publications

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“…All-optical signal processing fundamentally relies on modulation of one optical signal with another. Therefore all-optical logical functions have long been perceived as the exclusive domain of nonlinear optics [1], which requires a minimum level of intensity to activate the nonlinear material response and faces trade-offs between magnitude and speed of the nonlinearity involved [2][3][4][5][6]. However, recently it was shown that an effective nonlinear response may be derived from coherent interaction of light with light on linear materials of substantially subwavelength thickness [7].…”

mentioning

confidence: 99%

Fibre-optic metadevice for all-optical signal modulation based on coherent absorption

et al. 2018

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Recently, coherent control of the optical response of thin films in standing waves has attracted considerable attention, ranging from applications in excitation-selective spectroscopy and nonlinear optics to all-optical image processing. Here, we show that integration of metamaterial and optical fibre technologies allows the use of coherently controlled absorption in a fully fiberized and packaged switching metadevice. With this metadevice, which controls light with light in a nanoscale plasmonic metamaterial film on an optical fibre tip, we provide proof-of-principle demonstrations of logical functions XOR, NOT and AND that are performed within a coherent fibre network at wavelengths between 1530 and 1565 nm. The metadevice has been tested at up to 40 gigabits per second and sub-milliwatt power levels. Since coherent absorption can operate at the single-photon level and with 100 THz bandwidth, we argue that the demonstrated all-optical switch concept has potential applications in coherent and quantum information networks.

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confidence: 99%

Fibre-optic metadevice for all-optical signal modulation based on coherent absorption

et al. 2018

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“…In this section, we briefly discuss the scheme and operation principle of all-optical gates which are core logic units for the all-optical signal processing system implementation [9]. All-optical gates may be divided into two groups: without SOA and with SOA [9]. The all-optical gates without SOA are based on the change in nonlinear refraction index in silica fiber [9].…”

Section: All-optical Logic Gates With Soamentioning

confidence: 99%

Ultra-Fast All-Optical Memory based on Quantum Dot Semiconductor Optical Amplifiers (QD-SOA)

Ezra¹,

Lembrikov²

2017

Optical Fiber and Wireless Communications

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All-optical signal processing is characterized by high bit-rate, power efficiency, high bandwidth, and transparency. All-optical logic gates are basic logic units for the alloptical signal processing implementation. Typically, all-optical gates are based on strong optical nonlinearities related in particular to semiconductor optical amplifiers (SOA). We briefly review the state of art in the field of all-optical logic gates and all-optical memory. In the original part, we discuss the ultrafast all-optical memory loop based on the Mach-Zehnder interferometer (MZI) with quantum dot (QD) semiconductor optical amplifier (SOA) in each arm.

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“…1 Materials containing photo-responsive dyes have been found to be suitable for such a task and therefore become attractive in the field of optical communication and high-density optical data storage. [16][17][18] Azo-dye containing polymers are usually known for the large photoinduced linear birefringence that makes them attractive for reversible optical storage and other optical applications.…”

Section: Introductionmentioning

confidence: 99%

All-optical logical gates based on photoinduced molecules reorientation in amorphous polymer films

Guo

Liu

Zhou

et al. 2016

J. Nonlinear Optic. Phys. Mat.

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A type of all-optical logical gate based on two kinds of refractive index grating in azo-dye doped polymer film is studied in this paper. Using interference recording method with two 532 nm laser beams, the transient refractive gratings can be formed in poly(methyl methacrylate) (PMMA) films containing azo-dye Disperse Red 13 (DR13). The characteristics of the transient gratings in films which are recorded by two 532 nm laser beams with different polarization states are investigated by monitoring the first-order diffraction intensity of the readout He-Ne laser beam (632.8 nm). It is found that the transient gratings in the polymeric films can be established and decayed in several seconds. Furthermore, we realize XOR and XNOR all-optical logical operation based on the relationship among the polarization states of the recording beams, the reading beam, and the diffraction beam.

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All-Optical Logic Gates: Designs, Classification, and Comparison

Cited by 97 publications

References 67 publications

Fibre-optic metadevice for all-optical signal modulation based on coherent absorption

Fibre-optic metadevice for all-optical signal modulation based on coherent absorption

Ultra-Fast All-Optical Memory based on Quantum Dot Semiconductor Optical Amplifiers (QD-SOA)

All-optical logical gates based on photoinduced molecules reorientation in amorphous polymer films

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