Abstract

LiNbO3 waveguide substrates are terminated in out-of-plane 45°-angled knife edges for the first time to our knowledge. This termination causes the guided wave to be totally internally reflected with excellent efficiency into or out of the waveguide surface, which allows new approaches for hybrid integration.

© 1989 Optical Society of America

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References

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  1. E. J. Murphy, IEEE J. Lightwave Technol. LT-5, 862 (1988).
    [CrossRef]
  2. R. G. Hunsperger, Integrated Optics: Theory and Technology (Springer-Verlag, New York, 1982), Chap. 6.
  3. Z. L. Liau, J. N. Walpole, V. Diadiuk, in Digest of Topical Meeting on Integrated and Guided-Wave Optics (Optical Society of America, Washington, D. C., 1988), paper WA-1.
  4. J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
    [CrossRef]
  5. D. Y. Zang, Opt. Commun. 47, 248 (1983).
    [CrossRef]

1988

E. J. Murphy, IEEE J. Lightwave Technol. LT-5, 862 (1988).
[CrossRef]

1987

J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
[CrossRef]

1983

D. Y. Zang, Opt. Commun. 47, 248 (1983).
[CrossRef]

DeFreez, R. K.

J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
[CrossRef]

Diadiuk, V.

Z. L. Liau, J. N. Walpole, V. Diadiuk, in Digest of Topical Meeting on Integrated and Guided-Wave Optics (Optical Society of America, Washington, D. C., 1988), paper WA-1.

Elliot, R. A.

J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
[CrossRef]

Hunsperger, R. G.

R. G. Hunsperger, Integrated Optics: Theory and Technology (Springer-Verlag, New York, 1982), Chap. 6.

Liau, Z. L.

Z. L. Liau, J. N. Walpole, V. Diadiuk, in Digest of Topical Meeting on Integrated and Guided-Wave Optics (Optical Society of America, Washington, D. C., 1988), paper WA-1.

Murphy, E. J.

E. J. Murphy, IEEE J. Lightwave Technol. LT-5, 862 (1988).
[CrossRef]

Orloff, J.

J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
[CrossRef]

Paoli, T. L.

J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
[CrossRef]

Puretz, J.

J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
[CrossRef]

Walpole, J. N.

Z. L. Liau, J. N. Walpole, V. Diadiuk, in Digest of Topical Meeting on Integrated and Guided-Wave Optics (Optical Society of America, Washington, D. C., 1988), paper WA-1.

Zang, D. Y.

D. Y. Zang, Opt. Commun. 47, 248 (1983).
[CrossRef]

Electron. Lett.

J. Puretz, R. K. DeFreez, R. A. Elliot, J. Orloff, T. L. Paoli, Electron. Lett. 23, 130 (1987).
[CrossRef]

IEEE J. Lightwave Technol.

E. J. Murphy, IEEE J. Lightwave Technol. LT-5, 862 (1988).
[CrossRef]

Opt. Commun.

D. Y. Zang, Opt. Commun. 47, 248 (1983).
[CrossRef]

Other

R. G. Hunsperger, Integrated Optics: Theory and Technology (Springer-Verlag, New York, 1982), Chap. 6.

Z. L. Liau, J. N. Walpole, V. Diadiuk, in Digest of Topical Meeting on Integrated and Guided-Wave Optics (Optical Society of America, Washington, D. C., 1988), paper WA-1.

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Figures (5)

Fig. 1
Fig. 1

Geometry of the angled substrate (only one waveguide is shown).

Fig. 2
Fig. 2

Photograph of the substrate and the angle-coupled light (arrow).

Fig. 3
Fig. 3

Mode profiles of the 45°-angled waveguide output. (a) Width 4.5 μm (FWHM), (b) depth = 3.9 μm (FWHM).

Fig. 4
Fig. 4

Mode profiles of the 90°-angled waveguide output. (a) Width = 4.5 μm (FWHM), (b) depth = 3.6 μm (FWHM).

Fig. 5
Fig. 5

Side-view diagram of the fiber-coupling experiment.

Equations (2)

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n 1 sin θ 1 = n 2 sin θ 2 ,
θ 2 27.4 ° .

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