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Optics Letters

Optics Letters


  • Vol. 24, Iss. 22 — Nov. 15, 1999
  • pp: 1617–1619

Nonlinear directional coupler in periodically poled lithium niobate

R. Schiek, L. Friedrich, H. Fang, G. I. Stegeman, K. R. Parameswaran, M.-H. Chou, and M. M. Fejer  »View Author Affiliations

Optics Letters, Vol. 24, Issue 22, pp. 1617-1619 (1999)

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Nonlinear wave propagation was investigated experimentally in coupled waveguides by means of the cascaded nonlinearity in quasi-phase-matched second-harmonic generation. With a specially designed wave-vector-mismatch distribution along the propagation axis, cascading was optimized for low fundamental depletion. High-contrast, ultrafast all-optical switching with switching powers of tens of watts was observed.

© 1999 Optical Society of America

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(130.4310) Integrated optics : Nonlinear
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

R. Schiek, L. Friedrich, H. Fang, G. I. Stegeman, K. R. Parameswaran, M.-H. Chou, and M. M. Fejer, "Nonlinear directional coupler in periodically poled lithium niobate," Opt. Lett. 24, 1617-1619 (1999)

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