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Optics Letters

Optics Letters

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  • Vol. 24, Iss. 21 — Nov. 1, 1999
  • pp: 1508–1510

Fast, reconfigurable light-induced waveguides

Ph. Dittrich, G. Montemezzani, P. Bernasconi, and P. Günter  »View Author Affiliations


Optics Letters, Vol. 24, Issue 21, pp. 1508-1510 (1999)
http://dx.doi.org/10.1364/OL.24.001508


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Abstract

Fast and reconfigurable one-dimensional waveguides are produced by interband photorefraction. The index barriers are induced by ultraviolet light. The guiding of a red laser beam with a full width at half-maximum of 15 μm is demonstrated. Buildup and decay times of the waveguide in pure KNbO<sub>3</sub> are of the order of 100 μs and 10 ms, respectively. The intensity of the guided light has no influence on the guiding properties over the range from 4 mW/cm<sup>2</sup> to 200 W/cm<sup>2</sup> . By reconfiguration of the waveguide, deflection angles of as much as 1.75 deg inside the crystal are achieved.

© 1999 Optical Society of America

OCIS Codes
(190.5330) Nonlinear optics : Photorefractive optics
(230.7370) Optical devices : Waveguides

Citation
Ph. Dittrich, G. Montemezzani, P. Bernasconi, and P. Günter, "Fast, reconfigurable light-induced waveguides," Opt. Lett. 24, 1508-1510 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-21-1508

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