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Optical reversible programmable Boolean logic unit |
Applied Optics, Vol. 51, Issue 21, pp. 5266-5271 (2012)
http://dx.doi.org/10.1364/AO.51.005266
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Abstract
Computing with reversibility is the only way to avoid dissipation of energy associated with bit erase. So, a reversible microprocessor is required for future computing. In this paper, a design of a simple all-optical reversible programmable processor is proposed using a polarizing beam splitter, liquid crystal-phase spatial light modulators, a half-wave plate, and plane mirrors. This circuit can perform 16 logical operations according to three programming inputs. Also, inputs can be easily recovered from the outputs. It is named the “reversible programmable Boolean logic unit (RPBLU).” The logic unit is the basic building block of many complex computational operations. Hence the design is important in sense. Two orthogonally polarized lights are defined here as two logical states, respectively.
© 2012 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
History
Original Manuscript: October 31, 2011
Revised Manuscript: June 6, 2012
Manuscript Accepted: June 6, 2012
Published: July 18, 2012
Citation
Tanay Chattopadhyay, "Optical reversible programmable Boolean logic unit," Appl. Opt. 51, 5266-5271 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-21-5266
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