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All optical half adder/subtractor using dark‐bright soliton conversion control
Author(s) -
Phongsanam P.,
Mitatha S.,
Teeka C.,
Yupapin P.P.
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26039
Subject(s) - subtractor , adder , soliton , computer science , physics , microwave , optoelectronics , electronic engineering , engineering , telecommunications , quantum mechanics , nonlinear system , cmos
We propose a new design of all‐optical circuit using microring and nanoring devices, in which the simultaneous operation of half adder/subtractor arithmetic can be formed by using the dark‐bright soliton conversion control within the system. The input logic “0” and “1” are performed by using dark and bright soliton pulses, respectively. By using the dark‐bright soliton conversion behavior with in the π/2 phase shift device (i.e., an optical coupler), the arithmetic unit can perform simultaneously at the drop‐ and through‐ ports, respectively. In application, the proposed concept can be recognized as a simple and flexible scheme for performing the logic switching system, which can be used for advanced logical system. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26039