Concepedia

Ion-beam manipulation of the photorefractive properties of strontium barium niobate planar waveguides

E.E. Robertson, Peter J. Chandler, Xuefeng Huang, R.W. Eason, Małgorzata Kaczmarek

Optics Letters · 1996 · 12 citations · 6 references

DOI

Concepts

Abstract

Photorefractive planar waveguides have been fabricated in cerium-doped strontium barium niobate (Sr(x)Ba(1-x)Nb(2)O(6), SBN) single crystals by ion-beam implantation. The losses measured were as low as 0.1 and 7.0 dB cm(-1) for the TM and the TE modes, respectively. Subsequent two-beam-coupling experiments performed on the waveguides showed that, unlike for BaTiO(3) and KNbO(3) waveguides formed by ion-beam implantation, the two-beam-coupling gain direction did not reverse. Also, the response time had been reduced by 2 orders of magnitude.

References

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