Design and optimization of all-optical AND and NOR logic gates in a two-dimensional photonic crystal for binary-phase-shift-keyed signals

Lin, Yuxi; Tang, Chunrong; Yin, Hongxi; Yang, Hao; Wu, Chenguang

doi:10.1109/bmei.2014.7002912

Cited by 4 publications

(8 citation statements)

References 10 publications

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“…The sole change in designing the NOR OLG was that O 1 and O 2 were locked at logic "1", which was represented by an outphasing of π/2. The AND OLG realized a CR of 21 dB, whereas the NOR operation achieved a CR of 19 dB [150]. Table 2 demonstrates the effectiveness of PBG-based all-OLGs on performance metrics such as the CR.…”

Section: (A) Non-pbg-based All-olgsmentioning

confidence: 98%

“…Binary phase-shift keyed (BPSK) signals are utilized as I/P logic values because, in MMI, I/P values are often expressed by the phase of the I/P signals, and O/P logic levels are expressed using amplitude independent of phase. Silicon material was employed for the rods in the suggested device, with air as the background oriented in a square lattice shape [150]. As indicated in Figure 7b, A and B are the I/P points of the XOR/XNOR OLG arrangement, whereas X and Y are the O/P points.…”

Section: (A) Non-pbg-based All-olgsmentioning

confidence: 99%

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Optical Computing: Status and Perspectives

2022

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For many years, optics has been employed in computing, although the major focus has been and remains to be on connecting parts of computers, for communications, or more fundamentally in systems that have some optical function or element (optical pattern recognition, etc.). Optical digital computers are still evolving; however, a variety of components that can eventually lead to true optical computers, such as optical logic gates, optical switches, neural networks, and spatial light modulators have previously been developed and are discussed in this paper. High-performance off-the-shelf computers can accurately simulate and construct more complicated photonic devices and systems. These advancements have developed under unusual circumstances: photonics is an emerging tool for the next generation of computing hardware, while recent advances in digital computers have empowered the design, modeling, and creation of a new class of photonic devices and systems with unparalleled challenges. Thus, the review of the status and perspectives shows that optical technology offers incredible developments in computational efficiency; however, only separately implemented optical operations are known so far, and the launch of the world’s first commercial optical processing system was only recently announced. Most likely, the optical computer has not been put into mass production because there are still no good solutions for optical transistors, optical memory, and much more that acceptance to break the huge inertia of many proven technologies in electronics.

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Section: (A) Non-pbg-based All-olgsmentioning

confidence: 98%

Section: (A) Non-pbg-based All-olgsmentioning

confidence: 99%

Optical Computing: Status and Perspectives

2022

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“…8(b), were introduced in Ref. 33, with B and A as inputs and O1 and O2 denoting fixed phase and amplitude. The self-collimated imaging phenomena are the idea that MMI devices operate on.…”

Section: Optical Logic Gates Based On Bandgapmentioning

confidence: 99%

“…(a) Sketch of 21×23 XNOR/XOR using BPSK indication and (b) configuration of 13×19 AND gate with nonlinear Kerr substance rod 33 …”

Section: Optical Logic Gates Based On Bandgapmentioning

confidence: 99%

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Revolution of optical computing logic gates based on its applications: an extensive survey

Thankaraj¹,

Asokan²

2022

Opt. Eng.

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Nowadays, communication has grown into a key area with a rapidly growing user community. The existing broadband users are overcrowded, and its faster speed has now become an essential parameter to meet the consumer's expectations in the growing technology. As a result of our growth in computer technologies, high-speed processors are necessary, which provide simultaneous data computing with lower costs and a performance of more than 10,000 times quicker than electrical computers. Optics has become a more feasible alternative to electronics because of its greater speed. In this study, various methods of photonic crystals (PhCs) have been thoroughly examined, with essential properties and their benefits explained over previously identified methods (semiconductor optical amplifier and nonlinear waveguides) utilized to construct all-optical logic circuits. Particularly, evaluated a number of articles that covered topics including self-collimation effects, PhC waveguide intersection, and multi-mode interference with nonlinear effects. The merits and demerits of each technology are analyzed. Finally, concluded the major difficulties and the potential usage of every method. PhCs are used in logic circuits and devices for high data transmission. The performances of different types of logic gates based on PhC are studied.

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