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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 32 — Nov. 10, 2011
  • pp: 6049–6056

Optical programmable Boolean logic unit

Tanay Chattopadhyay  »View Author Affiliations

Applied Optics, Vol. 50, Issue 32, pp. 6049-6056 (2011)

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Logic units are the building blocks of many important computational operations likes arithmetic, multiplexer-demultiplexer, radix conversion, parity checker cum generator, etc. Multifunctional logic operation is very much essential in this respect. Here a programmable Boolean logic unit is proposed that can perform 16 Boolean logical operations from a single optical input according to the programming input without changing the circuit design. This circuit has two outputs. One output is complementary to the other. Hence no loss of data can occur. The circuit is basically designed by a 2 × 2 polarization independent optical cross bar switch. Performance of the proposed circuit has been achieved by doing numerical simulations. The binary logical states ( 0 , 1 ) are represented by the absence of light (null) and presence of light, respectively.

© 2011 Optical Society of America

OCIS Codes
(200.0200) Optics in computing : Optics in computing
(200.3760) Optics in computing : Logic-based optical processing
(200.4660) Optics in computing : Optical logic
(250.3750) Optoelectronics : Optical logic devices

ToC Category:
Optics in Computing

Original Manuscript: February 17, 2011
Revised Manuscript: August 18, 2011
Manuscript Accepted: August 26, 2011
Published: November 2, 2011

Tanay Chattopadhyay, "Optical programmable Boolean logic unit," Appl. Opt. 50, 6049-6056 (2011)

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