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Optical Engineering

New alternative approach to all-optical flip-flop with nonlinear material
Author(s): Dibyendu Giri; Partha Pratima Das
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Paper Abstract

Due to its inherent parallelism and tremendous operational speed, optical signal is the most suitable for data processing and digital communication in various fields. Conventional electronic and opto-electronic systems are unable to fulfill this arena, because of their low speed and time delay. In the case of pure electronic flip-flop, when a switch is turned ON, there is notable propagation delay on the order of nanoseconds. For an opto-electronic flip-flop although the propagation delay time is much less than that of an electronic flip-flop (about 10 to 100 times less), there are many disadvantages. Some of these disadvantages are delay of response time due to the use of spatial light modulators, an O/E converter that does not operate at all frequencies or wavelengths, and the unavailability of such materials. An optical input encoding methodology is proposed for the performance of all-optical flip-flop operations possible for two inputs. These operations were conducted in all-optical mode and are parallel in nature. All the operations are treated with proper exploitation of some nonlinear materials.

Paper Details

Date Published: 1 July 2010
PDF: 5 pages
Opt. Eng. 49(7) 075201 doi: 10.1117/1.3461970
Published in: Optical Engineering Volume 49, Issue 7
Show Author Affiliations
Dibyendu Giri, Haldia Institute of Technology (India)
Partha Pratima Das, Haldia Institute of Technology (India)

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