Design of optical quaternary adder and subtractor using polarization switching

Mandal, Sumana; Mandal, Dhoumendra; Mandal, Mrinal Kanti; Garai, Sisir Kumar

doi:10.1007/s12596-018-0460-3

Cited by 13 publications

(3 citation statements)

References 26 publications

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“…Multivalue logic application is highly appropriate for transferring signals with high data density compared to conventional binary inverter devices, resolving complex problems generated from the contemporary integrated circuit industry. [96][97][98][99][100] In particular, the NDR characteristics have attracted considerable attention as a candidate for implementing a ternary inverter based on the unique folded current behavior. Several studies have tried to implement ternary inverters using tunneling devices, which exhibit NDR characteristics.…”

Section: Multivalue Logic Applicationmentioning

confidence: 99%

Band‐to‐Band Tunneling Control by External Forces: A Key Principle and Applications

Woo

Kim

Yoo

2022

Adv Elect Materials

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Band‐to‐band tunneling (BTBT) devices with superior subthreshold swing directly related to on/off switching speed and power consumption efficiency have emerged as a breakthrough of the limitation in conventional metal‐oxide‐semiconductor field‐effect transistors (MOSFETs). However, it is difficult to reach a higher level of electrical characteristics with only a combination of materials based on their intrinsic characteristics. External forces, such as electric fields, light, and temperature, can modulate the electron and hole concentration and control the tunneling probability and the electrical characteristics of heterostructure electronics. Recent articles employing external forces to improve the BTBT performance and demonstrate the mechanism of BTBT devices are summarized with five representative external forces. Moreover, the utility of the external force‐induced performance improvement of the BTBT device is also discussed by providing various applications.

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Section: Multivalue Logic Applicationmentioning

confidence: 99%

Band‐to‐Band Tunneling Control by External Forces: A Key Principle and Applications

Woo

Kim

Yoo

2022

Adv Elect Materials

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“…Optical Amplifier Space Switches T. Sutili¹, P. Rocha¹, Ernesto M. M. Barrientos 1,2 , A. C. Bordonalli 1 , C. M. Gallep 3 , and E. Conforti¹, routing [10], and carrier wavelength reusing [11], [12]. Furthermore, its integrability enables the implementation of logic gates [13]- [15], optical adders and subtractors [16], memory modules [17], optical buffers [18]]-[ [20], optical demultiplexers [21], and wavelength selectors [22]. Through SOAs nonlinear behavior, it is also possible to project all-optical regenerators for intensity modulated [23], [24], phase encoded [25], [26], and coherent signals [27].…”

Section: Computational Model and Parameter Extraction Of High Speed Smentioning

confidence: 99%

Computational Model and Parameter Extraction of High Speed Semiconductor Optical Amplifier Space Switches

Sutili

Rocha

Barrientos

et al. 2018

J. Microw. Optoelectron. Electromagn. Appl.

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A characterization technique, including a mathematical model involving extensive computational resources, is introduced to study the behavior of an electro-optical space switch based on semiconductor optical amplifier (SOA). The model encompasses the precise emulation of device nonlinearities and its transient performance, allowing the characterization of its transient response. The calibration process includes the evaluation of parasites from the SOA connection, mounting and encapsulation, and parameter extraction of the active cavity. The numerical results are compared to experimental data for various operational conditions, with close similarities. The characterization technique can be adapted for other electro-optical devices, such as directedmodulated lasers, amplitude modulators and electro-optical switches.

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“…As its high information capability, low energy consumption and so on, optical computing is very promising and has been widely concerned on [10]- [17]. For high information capability of light ensures that optical computer may process data with huge number of data bits.…”

Section: Introductionmentioning

confidence: 99%

A Carry-Free Multiplication Implementation Method

Peng

Kong

2019

IEEE Access

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Delay caused by carry propagation is an unfavourable issue that much affects the efficiency of numerical computing in computer system. And the more data bits of the operands, the worse the delay. As data bits of the operands in optical computer can be huge because of the high information capability of light, this makes carry delay be very serious. As multiplication is one of the most important and popular calculations and many multiplications can be carried out in parallel by utilizing huge number of data bits of optical computer, study on how to reduce or even mitigate carry delay in multiplication is very important. To improve the multiplication efficiency, a new carry free method to design and implement multiplication based on Ternary Optical Computer (TOC) is put forward. Fully considering the relations between the operands based on modified signed-digit (MSD) number system, a parallel mulitplication implemeation strategy together with its resource allocation method is presented. The experimental results show that the proposed strategy is correct. It exerts the advantages of optical computing and ensures that no carry delay is introduced in the process of multiplication which much improves the efficiency of optical multiplication applications. INDEX TERMS Carry-free, MSD number system, multiplication application, optical computing.

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Design of optical quaternary adder and subtractor using polarization switching

Cited by 13 publications

References 26 publications

Band‐to‐Band Tunneling Control by External Forces: A Key Principle and Applications

Band‐to‐Band Tunneling Control by External Forces: A Key Principle and Applications

Computational Model and Parameter Extraction of High Speed Semiconductor Optical Amplifier Space Switches

A Carry-Free Multiplication Implementation Method

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