Arithmetic logic unit (ALU) is the most important unit in any computing system. Optical computing is becoming popular day-by-day because of its ultrahigh processing speed and huge data handling capability. Obviously for the fast processing we need the optical TALU compatible with the multivalued logic. In this regard we are communicating the trinary arithmetic and logic unit (TALU) in modified trinary number (MTN) system, which is suitable for the optical computation and other applications in multivalued logic system. Here the savart plate and spatial light modulator (SLM) based optoelectronic circuits have been used to exploit the optical tree architecture (OTA) in optical interconnection network. © 2011 Elsevier Ltd. All rights reserved.

A K GHOSH

A BHATTACHARYA

M RAUL

A BASURAY

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Optics and Laser Technology

With the demanding scenario of communication and optical computing technology the trinary and quadruple valued logic systems are the most important ones in the many valued logic system. Different techniques are being proposed day-by-day to implement the multi-valued logics (MVL). In our previous papers we have proposed the modified trinary number (MTN) systems using savart plates and spatial light modulators (SLM). In this paper we have communicated the quadruple valued logic system using di-bit concept and their implementations to meet up the tremendous needs of speeds by exploiting the advantages of savart plates and spatial light modulators (SLM) in the optical tree architecture (OTA). © Springer Science+Business Media LLC 2012.

Journal of Computational Electronics

Quadruple-valued logic system using savart plate and spatial light modulator (SLM) and it's applications

With the demand of the super fast processing and handling of huge volume of data the scientific workers in the field of computer and optics felt the importance of optical computation with multivalued logic. One of the most important number system suitable for optical computation with multivalued logic is the modified trinary number (MTN) system because of its carry and borrow-free operations. At this juncture to avail the advantages of both the Binary and MTN system the conversion from one system to another is most important. In this paper we have communicated the conversion from Binary to MTN and vice-versa including the mixed MTN with details of optoelectronic circuit implementation. © 2009 Springer Science+Business Media B.V.

Natural Computing

Binary to modified trinary number system conversion and vice-versa for optical super computing

The memory devices in multi-valued logic are of most significance in modern research. This paper deals with the implementation of basic memory devices in multi-valued logic using Savart plate and spatial light modulator (SLM) based optoelectronic circuits. Photons are used here as the carrier to speed up the operations. Optical tree architecture (OTA) has been also utilized in the optical interconnection network. We have exploited the advantages of Savart plates, SLMs and OTA and proposed the SLM based high speed JK, D-type and T-type flip-flops in a trinary system. © 2008 Tianjin University of Technology and Springer-Verlag GmbH.

Optoelectronics Letters

Trinary flip-flops using Savart plate and spatial light modulator for optical computation in multivalued logic

A method is described to represent data in a tristate logic system which are subsequently replaced by Modified Trinary Numbers (MTN). This system is advantagegeous in parallel processing as carry and borrow free operations in arithmatic computation is possible. The logical operations are also modified according to the three states available. A possible practical application of the same using polarized light is also suggested. © 1991.

Optics Communications

A tristate optical logic system

The tristate logic using signed digit numbers can be used for carry- and borrow-free mathematical operation. This paper deals with the basic logic system using trinary states as well as its implementation using shadow casting technique. © 1990.

Trinary optical logic processors using shadow casting with polarized light

A modified trinary number (MTN) system is proposed in which any binary number can be expressed with the help of trinary digits (1, 0, 1). Arithmetic operations can be performed in parallel without the need for carry and borrow steps when binary digits are converted to the MTN system. An optical implementation of the proposed scheme that uses spatial light modulators and color-coded light signals is described. © 1989 Optical Society of America.

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ISSN	0030-3992