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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 7 — Apr. 3, 2006
  • pp: 2776–2782

All-optical AND and NAND gates based on cascaded second-order nonlinear 3 waveguide

Yeung Lak Lee, Bong-Ahn Yu, Tae Joong Eom, Woojin Shin, Changsoo Jung, Young-Chul Noh, Jongmin Lee, Do-Kyeong Ko, and Kyunghwan Oh  »View Author Affiliations

Optics Express, Vol. 14, Issue 7, pp. 2776-2782 (2006)

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All-optical AND and NAND gates have been demonstrated in a Ti-diffused periodically poled LiNbO3 channel waveguide which has two second-harmonic phase-matching peaks by cascaded sum-frequency-generation/difference-frequency-generation (cSFG/DFG) and sum-frequency-generation (SFG) processes. The conversion efficiency of signal to idler (AND gate signal) was approximately 0 dB in cSFG/DFG process. In the second SFG process, more than 15 dB extinction ratio between signal and dropped signal (NAND gate signal) has been observed.

© 2006 Optical Society of America

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(130.3750) Integrated optics : Optical logic devices
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.1150) Optical devices : All-optical devices
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Nonlinear Optics

Original Manuscript: January 20, 2006
Revised Manuscript: March 22, 2006
Manuscript Accepted: March 25, 2006
Published: April 3, 2006

Yeung Lak Lee, Bong-Ahn Yu, Tae Joong Eom, Woojin Shin, Changsoo Jung, Young-Chul Noh, Jongmin Lee, Do-Kyeong Ko, and Kyunghwan Oh, "All-optical AND and NAND gates based on cascaded second-order nonlinear processes in a Ti-diffused periodically poled LiNbO3 waveguide," Opt. Express 14, 2776-2782 (2006)

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