Abstract

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

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References

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  1. G. I. Stegeman, D. J. Hagan, and L. Torner, Opt. Quantum Electron. 28, 1691 (1996).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  5. H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]

1999 (1)

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

1998 (2)

1997 (1)

1996 (3)

K. Kintaka, M. Fujimura, T. Suhara, and H. Nishihara, J. Lightwave Technol. 14, 462 (1996).
[CrossRef]

R. Schiek, Y. Baek, G. Krijnen, G. I. Stegeman, I. Baumann, and W. Sohler, Opt. Lett. 21, 940 (1996).
[CrossRef] [PubMed]

G. I. Stegeman, D. J. Hagan, and L. Torner, Opt. Quantum Electron. 28, 1691 (1996).
[CrossRef]

1994 (1)

R. Schiek, Opt. Quantum Electron. 26, 415 (1994); erratum 27, 133 (1995).
[CrossRef]

Arbore, M. A.

Asobe, M.

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

Baek, Y.

Baumann, I.

Chou, M.-H.

Fejer, M. M.

Fujimura, M.

K. Kintaka, M. Fujimura, T. Suhara, and H. Nishihara, J. Lightwave Technol. 14, 462 (1996).
[CrossRef]

Hagan, D. J.

G. I. Stegeman, D. J. Hagan, and L. Torner, Opt. Quantum Electron. 28, 1691 (1996).
[CrossRef]

Hauden, J.

Itoh, H.

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

Kanbara, H.

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

Kintaka, K.

K. Kintaka, M. Fujimura, T. Suhara, and H. Nishihara, J. Lightwave Technol. 14, 462 (1996).
[CrossRef]

Krijnen, G.

Levenson, J. A.

Lovering, D. J.

Miyazawa, H.

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

Nishihara, H.

K. Kintaka, M. Fujimura, T. Suhara, and H. Nishihara, J. Lightwave Technol. 14, 462 (1996).
[CrossRef]

Noguchi, K.

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

Russell, P. St. J.

Schiek, R.

Sohler, W.

Stegeman, G. I.

Suhara, T.

K. Kintaka, M. Fujimura, T. Suhara, and H. Nishihara, J. Lightwave Technol. 14, 462 (1996).
[CrossRef]

Torner, L.

G. I. Stegeman, D. J. Hagan, and L. Torner, Opt. Quantum Electron. 28, 1691 (1996).
[CrossRef]

Vidakovic, P.

Webjörn, J.

Yanagawa, T.

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

Yokohama, I.

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, and I. Yokohama, IEEE Photon. Technol. Lett. 11, 328 (1999).
[CrossRef]

J. Lightwave Technol. (1)

K. Kintaka, M. Fujimura, T. Suhara, and H. Nishihara, J. Lightwave Technol. 14, 462 (1996).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Lett. (3)

Opt. Quantum Electron. (2)

R. Schiek, Opt. Quantum Electron. 26, 415 (1994); erratum 27, 133 (1995).
[CrossRef]

G. I. Stegeman, D. J. Hagan, and L. Torner, Opt. Quantum Electron. 28, 1691 (1996).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Distribution of the wave-vector mismatch and a corresponding QPM grating period along a 30-mm-long positive grating.

Fig. 2
Fig. 2

Calculated SHG, FD depletion, and nonlinear phase shift ΦNL/π at the output of a waveguide with the QPM grating of Fig. 1 for room-temperature, cw FD input PIN=1 W.

Fig. 3
Fig. 3

Measured, temperature-tuned SHG in a single-channel waveguide in a positive nonuniform QPM grating, pulsed input, low depletion limit.

Fig. 4
Fig. 4

Normalized power-dependent mode pattern at the NLDC output facet: (a) 6.3-W, (b) 32-W, (c) 44-W, (d) 126-W peak power fundamental input. The waveguide output surface was imaged with a 10× microscope objective into a vidicon camera. Left, bar channel and right, cross-channel, low-FD depletion for λPM+1 nm.

Fig. 5
Fig. 5

Measured switching curve of a NLDC in a positive nonuniform QPM grating close to phase matching but still in the low-FD depletion regime for λPM+1 nm.

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