Abstract

Permanent uptapers have been produced in a UV-cured epoxy by a self-induced waveguide, created by exposure to cw 532-nm light. The photorefractive effect in this material produces high-quality, low-loss waveguides, which adiabatically taper to give spot sizes of as much as 50 μm diameter. The waveguides can be used at 1550 nm to form low-cost beam expanders with separations of a few millimeters.

© 1993 Optical Society of America

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References

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  1. K. Shiraishi, Y. Aizawa, T. Yanawa, S. Kawakami, Electron. Lett. 25, 1335 (1989).
    [CrossRef]
  2. K. Shiraishi, S. Kawakami, Opt. Lett. 15, 516 (1990).
    [CrossRef] [PubMed]
  3. A. Snyder, J. Love, Optical Waveguide Theory (Chapman & Hall, London, 1983).
  4. D. P. Hand, P. St. J Russell, Opt. Lett. 15, 102 (1990).
    [CrossRef] [PubMed]
  5. Loctite 358 UV Adhesive, manufactured by Loctite Limited, Dublin, Ireland. Contains acrylic acid and hydroxypropyl methacrylate.
  6. A. W. Snyder, D. J. Mitchell, L. Poladian, F. Ladouceur, Opt. Lett. 16, 21 (1991).
    [CrossRef] [PubMed]

1991 (1)

1990 (2)

1989 (1)

K. Shiraishi, Y. Aizawa, T. Yanawa, S. Kawakami, Electron. Lett. 25, 1335 (1989).
[CrossRef]

Aizawa, Y.

K. Shiraishi, Y. Aizawa, T. Yanawa, S. Kawakami, Electron. Lett. 25, 1335 (1989).
[CrossRef]

Hand, D. P.

Kawakami, S.

K. Shiraishi, S. Kawakami, Opt. Lett. 15, 516 (1990).
[CrossRef] [PubMed]

K. Shiraishi, Y. Aizawa, T. Yanawa, S. Kawakami, Electron. Lett. 25, 1335 (1989).
[CrossRef]

Ladouceur, F.

Love, J.

A. Snyder, J. Love, Optical Waveguide Theory (Chapman & Hall, London, 1983).

Mitchell, D. J.

Poladian, L.

Russell, P. St. J

Shiraishi, K.

K. Shiraishi, S. Kawakami, Opt. Lett. 15, 516 (1990).
[CrossRef] [PubMed]

K. Shiraishi, Y. Aizawa, T. Yanawa, S. Kawakami, Electron. Lett. 25, 1335 (1989).
[CrossRef]

Snyder, A.

A. Snyder, J. Love, Optical Waveguide Theory (Chapman & Hall, London, 1983).

Snyder, A. W.

Yanawa, T.

K. Shiraishi, Y. Aizawa, T. Yanawa, S. Kawakami, Electron. Lett. 25, 1335 (1989).
[CrossRef]

Electron. Lett. (1)

K. Shiraishi, Y. Aizawa, T. Yanawa, S. Kawakami, Electron. Lett. 25, 1335 (1989).
[CrossRef]

Opt. Lett. (3)

Other (2)

Loctite 358 UV Adhesive, manufactured by Loctite Limited, Dublin, Ireland. Contains acrylic acid and hydroxypropyl methacrylate.

A. Snyder, J. Love, Optical Waveguide Theory (Chapman & Hall, London, 1983).

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Figures (3)

Fig. 1
Fig. 1

(a) Light diffracting from the fundamental mode of a fiber into a photorefractive material. The refractive index changes most rapidly in the beam waist. (b) An optical waveguide forms in the photorefractive material, tapering to a larger diameter. The larger the diameter, the slower the rate of taper.

Fig. 2
Fig. 2

Experimental arrangement to observe formation of a self-induced uptapered waveguide.

Fig. 3
Fig. 3

Far-field intensity measurement of an uptapered waveguide at a distance of 33 mm as measured by the knife-edge technique.

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