Abstract

We report observations of transverse optical structures (traveling bright light spots) that appear in a novel type of ring resonator. In this arrangement an optically addressable liquid-crystal spatial light modulator is combined with a BaTiO3 crystal that provides strong photorefractive beam fanning. The information traveling around is carried either by the phase or by the intensity of the light waves in different parts of the resonator. The movement of the transverse structures is related to the alignment of the resonator, which is controlled by an interferometer. It is demonstrated that such a resonator is able to store weak optical signals.

© 1996 Optical Society of America

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References

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1995 (2)

1994 (2)

1993 (1)

1992 (1)

1988 (1)

1987 (1)

D. Z. Anderson, M. C. Erie, Opt. Eng. 26, 434 (1987).

1986 (1)

1984 (1)

Anderson, D. Z.

D. Z. Anderson, M. C. Erie, Opt. Eng. 26, 434 (1987).

Dambly, L.

Dangoisse, D.

de Bougrenet, J.-L.

de la Tocnaye,

Dunning, G. J.

Engin, D.

Erie, M. C.

D. Z. Anderson, M. C. Erie, Opt. Eng. 26, 434 (1987).

Fainman, Y.

Ford, J. E.

Glorieux, P.

Hennequin, D.

Huignard, J.-P.

Indebetouw, G.

Jost, B. M.

Kowarschik, R.

Krolikowski, W.

Lee, H. S.

Liu, S. R.

Luther-Davies, B.

Pellat-Finet, P.

Rehn, H.

Ringhofer, K. H.

Segev, M.

Valley, G. C.

Yariv, A.

Yu, W.

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Figures (8)

Fig. 1
Fig. 1

Optical arrangement: M's, mirrors; BS's, beam splitters; L's, lenses.

Fig. 2
Fig. 2

Phase shift as a function of the intensity (I) on the rear side of the OASLM. This curve was measured for an applied ac electric field with an amplitude and a frequency as indicated.

Fig. 3
Fig. 3

Bright spots in the case of an accurate resonator alignment.

Fig. 4
Fig. 4

Traveling spots for shifted imaging.

Fig. 5
Fig. 5

Movement outward from the center for slight magnification.

Fig. 6
Fig. 6

Astigmatic imaging that is due to a cylindrical lens and corresponding traveling spots.

Fig. 7
Fig. 7

Transverse structures traveling on a spiral path.

Fig. 8
Fig. 8

Image of a grating structure stored by the resonator.

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