Optical waveguides – Having nonlinear property
Reexamination Certificate
2005-01-04
2005-01-04
Lee, John D. (Department: 2874)
Optical waveguides
Having nonlinear property
C385S126000
Reexamination Certificate
active
06839495
ABSTRACT:
An optical waveguide (11) includes a region (22) which, after electrical poling of a guiding region (16), maintains an internal electric field induced by the poling potential. The internal electric field may arise from charge separation between regions (18, 20) induced by an adjacent poling electrode (12A), and region (22) acts to inhibit decay of the space charge and to increase the lifetime of the induced electro-optic effect. The waveguide may comprise a twin hole optical fiber (11) with internal electrodes (12A,14A), where the region (22) comprises a borosilicate layer concentrically disposed about one of the electrodes.
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Blazkiewicz et al, “Modification of Thermal Poling Evolution Using Novel Twin-Hole Fibers”, Aug. 2001, pp. 1149-1154, vol. 19, No. 8, Journal of Lightwave Technology, New York, NY.
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Derwent Abst. Accession No. 89-317274/44, EP 339 385 A (Siemens AG), Nov. 2, 1989.
Blazkiewicz Paul
Ryan Thomas
Wong Danny
Xu Wei
Hunt, Jr. Ross F.
Song Sarah U
Stites & Harbison PLLC
The University of Sydney
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