Optical waveguide coupler having a grating electrode

Details Optical waveguide coupler having a grating electrode Optical waveguide coupler having a grating electrode

1985-01-28

1987-02-24

Sikes, William L.

G02B 610

Patent

active

046452931

ABSTRACT:
An optical coupling device comprising an electrooptical substrate, a pair of optical waveguides formed in the surface of the substrate and a grating electrode is provided. The grating electrode is so disposed to extend along one of the pair of optical waveguides at least partially. Thus, when a suitable voltage is applied to the grating electrode, a periodically changing structure of refractive index is formed within the one of the paired optical waveguides to couple the paired optical waveguides, thereby allowing to transfer a light signal from one waveguide to the other.

REFERENCES:
patent: 3964819 (1976-06-01), Auracher
patent: 3995311 (1976-11-01), Taylor
patent: 4054362 (1977-10-01), Bauer
patent: 4243295 (1981-01-01), Alferness
patent: 4273411 (1981-06-01), Alferness
patent: 4380364 (1983-04-01), Marcatili
patent: 4381139 (1983-04-01), Alferness
patent: 4390236 (1983-06-01), Alferness
patent: 4448479 (1984-05-01), Alferness
patent: 4461535 (1984-07-01), Marcatili

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