Abstract

What is believed to be the first investigation of second-harmonic generation (SHG) in Ca4GdOBO33 waveguides is reported. A planar waveguide was formed by 2-MeV-helium implantation. We cut the sample to achieve type I noncritical phase matching of an 823-nm fundamental wave for fundamental light propagating along the y axis and polarized along the z crystallophysic axis of the crystal. SHG was achieved with a relatively low pumping power of a cw Ti:sapphire laser. The results indicate that the nonlinearity of the material remains in the guiding region after ion implantation.

© 1999 Optical Society of America

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References

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  1. B. H. T. Chai, Opt. Photon. News 10(1), 31 (1999).
    [CrossRef]
  2. G. Aka, A. Kahn-Harari, F. Mougel, D. Vivien, F. Salin, P. Colin, D. Pelenc, and J. L. Damelet, J. Opt. Soc. Am. B 14, 2238 (1997).
    [CrossRef]
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  6. A. Boudrioua, P. Moretti, G. Aka, and J. C. Loulergue, Opt. Lett. 23, 1680 (1998).
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  7. M. G. Roelofs, A. Ferretti, and J. D. Berlein, J. Appl. Phys. 73, 4999 (1993).
    [CrossRef]
  8. A. Boudrioua, S. Ould Salem, P. Moretti, R. Kremer, and J. C. Loulergue, Nucl. Instrum. Methods Phys. Res. B 147, 393 (1998).
    [CrossRef]
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1999 (2)

1998 (3)

1997 (1)

1993 (1)

M. G. Roelofs, A. Ferretti, and J. D. Berlein, J. Appl. Phys. 73, 4999 (1993).
[CrossRef]

1992 (1)

L. Zhang, P. J. Chandler, P. D. Townsend, Z. T. Alwahabi, and A. J. McCaffery, Electron. Lett. 28, 1478 (1992).
[CrossRef]

1991 (1)

L. Babsail, G. Lifante, and P. D. Townsend, Appl. Phys. Lett. 59, 384 (1991).
[CrossRef]

1985 (1)

K. S. Chiang, J. Lightwave Technol. 3, 385 (1985).
[CrossRef]

1975 (1)

H. Ito and H. Inaba, Opt. Commun. 15, 104 (1975).
[CrossRef]

Aka, G.

Alwahabi, Z. T.

L. Zhang, P. J. Chandler, P. D. Townsend, Z. T. Alwahabi, and A. J. McCaffery, Electron. Lett. 28, 1478 (1992).
[CrossRef]

Babsail, L.

L. Babsail, G. Lifante, and P. D. Townsend, Appl. Phys. Lett. 59, 384 (1991).
[CrossRef]

Beckers, L.

Berlein, J. D.

M. G. Roelofs, A. Ferretti, and J. D. Berlein, J. Appl. Phys. 73, 4999 (1993).
[CrossRef]

Boudrioua, A.

A. Boudrioua, S. Ould Salem, P. Moretti, R. Kremer, and J. C. Loulergue, Nucl. Instrum. Methods Phys. Res. B 147, 393 (1998).
[CrossRef]

A. Boudrioua, P. Moretti, G. Aka, and J. C. Loulergue, Opt. Lett. 23, 1680 (1998).
[CrossRef]

Buchal, C.

Chai, B. H. T.

B. H. T. Chai, Opt. Photon. News 10(1), 31 (1999).
[CrossRef]

Chandler, P. J.

L. Zhang, P. J. Chandler, P. D. Townsend, Z. T. Alwahabi, and A. J. McCaffery, Electron. Lett. 28, 1478 (1992).
[CrossRef]

P. D. Townsend, P. J. Chandler, and L. Zhang, Optical Effects of Ion Implantation (Cambridge U. Press, Cambridge, 1994).
[CrossRef]

Chiang, K. S.

K. S. Chiang, J. Lightwave Technol. 3, 385 (1985).
[CrossRef]

Colin, P.

Damelet, J. L.

Dardenne, K.

Ferretti, A.

M. G. Roelofs, A. Ferretti, and J. D. Berlein, J. Appl. Phys. 73, 4999 (1993).
[CrossRef]

Fluck, D.

Günter, P.

Inaba, H.

H. Ito and H. Inaba, Opt. Commun. 15, 104 (1975).
[CrossRef]

Ito, H.

H. Ito and H. Inaba, Opt. Commun. 15, 104 (1975).
[CrossRef]

Kahn-Harari, A.

Kremer, R.

A. Boudrioua, S. Ould Salem, P. Moretti, R. Kremer, and J. C. Loulergue, Nucl. Instrum. Methods Phys. Res. B 147, 393 (1998).
[CrossRef]

Lifante, G.

L. Babsail, G. Lifante, and P. D. Townsend, Appl. Phys. Lett. 59, 384 (1991).
[CrossRef]

Loulergue, J. C.

A. Boudrioua, S. Ould Salem, P. Moretti, R. Kremer, and J. C. Loulergue, Nucl. Instrum. Methods Phys. Res. B 147, 393 (1998).
[CrossRef]

A. Boudrioua, P. Moretti, G. Aka, and J. C. Loulergue, Opt. Lett. 23, 1680 (1998).
[CrossRef]

McCaffery, A. J.

L. Zhang, P. J. Chandler, P. D. Townsend, Z. T. Alwahabi, and A. J. McCaffery, Electron. Lett. 28, 1478 (1992).
[CrossRef]

Moretti, P.

A. Boudrioua, S. Ould Salem, P. Moretti, R. Kremer, and J. C. Loulergue, Nucl. Instrum. Methods Phys. Res. B 147, 393 (1998).
[CrossRef]

A. Boudrioua, P. Moretti, G. Aka, and J. C. Loulergue, Opt. Lett. 23, 1680 (1998).
[CrossRef]

Mougel, F.

Ould Salem, S.

A. Boudrioua, S. Ould Salem, P. Moretti, R. Kremer, and J. C. Loulergue, Nucl. Instrum. Methods Phys. Res. B 147, 393 (1998).
[CrossRef]

Pelenc, D.

Pliska, T.

Roelofs, M. G.

M. G. Roelofs, A. Ferretti, and J. D. Berlein, J. Appl. Phys. 73, 4999 (1993).
[CrossRef]

Salin, F.

Townsend, P. D.

L. Zhang, P. J. Chandler, P. D. Townsend, Z. T. Alwahabi, and A. J. McCaffery, Electron. Lett. 28, 1478 (1992).
[CrossRef]

L. Babsail, G. Lifante, and P. D. Townsend, Appl. Phys. Lett. 59, 384 (1991).
[CrossRef]

P. D. Townsend, P. J. Chandler, and L. Zhang, Optical Effects of Ion Implantation (Cambridge U. Press, Cambridge, 1994).
[CrossRef]

Vivien, D.

Zhang, L.

L. Zhang, P. J. Chandler, P. D. Townsend, Z. T. Alwahabi, and A. J. McCaffery, Electron. Lett. 28, 1478 (1992).
[CrossRef]

P. D. Townsend, P. J. Chandler, and L. Zhang, Optical Effects of Ion Implantation (Cambridge U. Press, Cambridge, 1994).
[CrossRef]

Appl. Phys. Lett. (1)

L. Babsail, G. Lifante, and P. D. Townsend, Appl. Phys. Lett. 59, 384 (1991).
[CrossRef]

Electron. Lett. (1)

L. Zhang, P. J. Chandler, P. D. Townsend, Z. T. Alwahabi, and A. J. McCaffery, Electron. Lett. 28, 1478 (1992).
[CrossRef]

J. Appl. Phys. (1)

M. G. Roelofs, A. Ferretti, and J. D. Berlein, J. Appl. Phys. 73, 4999 (1993).
[CrossRef]

J. Lightwave Technol. (1)

K. S. Chiang, J. Lightwave Technol. 3, 385 (1985).
[CrossRef]

J. Opt. Soc. Am. B (3)

Nucl. Instrum. Methods Phys. Res. B (1)

A. Boudrioua, S. Ould Salem, P. Moretti, R. Kremer, and J. C. Loulergue, Nucl. Instrum. Methods Phys. Res. B 147, 393 (1998).
[CrossRef]

Opt. Commun. (1)

H. Ito and H. Inaba, Opt. Commun. 15, 104 (1975).
[CrossRef]

Opt. Lett. (1)

Opt. Photon. News (1)

B. H. T. Chai, Opt. Photon. News 10(1), 31 (1999).
[CrossRef]

Other (1)

P. D. Townsend, P. J. Chandler, and L. Zhang, Optical Effects of Ion Implantation (Cambridge U. Press, Cambridge, 1994).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Refractive-index profiles nx, ny, and nz for a GdCOB waveguide formed by He+ implantation. The curves were obtained from the measured effective mode indices (at 632 nm) by use of an improved inverse WKB method.

Fig. 2
Fig. 2

Experimental setup used for SHG measurements: P, polarizer; L’s, microscope objective lenses; D, neutral-density filter; F, blocking filter; PM, photomultiplier; PC, personal computer.

Fig. 3
Fig. 3

Second-harmonic power as a function of the fundamental wavelength for a He+-implanted GdCOB waveguide. The curve labeled th. is the best theoretical fit obtained with Eq. (1).

Fig. 4
Fig. 4

Second-harmonic power at 823 nm as a function of the fundamental pump power for a He+-implanted GdCOB waveguide of 5-mm length.

Equations (1)

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P2ω=αsinΔkd/2/Δkd/22,

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