Electro-optic channel switch

Details Electro-optic channel switch Electro-optic channel switch

1990-08-24

1992-04-07

Sikes, William L.

Optical waveguides

Directional optical modulation within an optical waveguide

Electro-optic

G02B 610

Patent

active

051034921

ABSTRACT:
An optical signal propagated through a poled-polymer input channel waveguide can be switched to a selected one of a pair of poled-polymer output channel waveguides, while producing only very low cross-talk in the unselected one of the output channel waveguides. The input and output channel waveguides are located within a non-linear optical polymer structure so that an end portion of the input channel waveguide is disposed between end portions of the two output channel waveguides. A first pair of electrodes is positioned so as to apply an electric field across one of the output channel waveguides, and a second pair of electrodes is positioned so as to apply an electric field across the other of the output channel waveguides. The first and second pairs of electrodes can be selectively energized so as to superimpose field-dependent changes upon the index of refraction in either of the output channel waveguides, thereby enabling the signal in the input channel waveguide to be resonantly coupled to either one of the output channel waveguides as desired.

REFERENCES:
patent: 4181399 (1980-01-01), McMahon et al.
patent: 4203649 (1980-05-01), Velasco et al.
patent: 4222638 (1980-09-01), Robert
patent: 4389567 (1983-06-01), Khoe et al.
patent: 4561718 (1985-12-01), Nelson
patent: 4583817 (1986-04-01), Papuchon

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