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An all-optical full-adder is proposed based on cascaded second-order nonlinearities of sum-frequency generation and difference-frequency generation in quasi-phase-matched periodically poled lithium niobate (PPLN) waveguides. By utilizing the logic functions of PPLN waveguides, a configuration based on cascaded PPLN waveguides is designed to achieve the all-optical full-adder. The waveforms, eye diagrams, extinction ratio, pulse width, and peak power delay of the signals in the all-optical full-adder are calculated and discussed numerically. The results demonstrate that the logic function of full-adder can be achieved well by this configuration, which has important significance for all-optical digital signal processing.
Published in:
Quantum Electronics, IEEE Journal of
(Volume:47
,
Issue:
9
)
Date of Publication: Sept. 2011
- Page(s):
- 1195 - 1200
- ISSN :
- 0018-9197
- INSPEC Accession Number:
- 12175296
- Digital Object Identifier :
- 10.1109/JQE.2011.2161269
- Product Type:
- Journals & Magazines
- Date of Publication :
- 04 July 2011
- Date of Current Version :
- 25 July 2011
- Issue Date :
- Sept. 2011
- Sponsored by :
- IEEE Photonics Society
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