Optical integrated circuit

Details Optical integrated circuit Optical integrated circuit

1991-04-17

1992-05-05

Ullah, Akm E.

Optical waveguides

Integrated optical circuit

G02B 600, G02B 636

Patent

active

051115182

ABSTRACT:
First and second optical waveguides are provided which extend at one end to one side of an electro-optic plate and are interconnected at the other ends, and the connection point is connected to one end of a third optical waveguide. Light from the third optical waveguide is branched to the first and second optical waveguides, whereas light beams from the first and second optical waveguides are supplied together to the third optical waveguide. The angle of the first optical waveguide to the above-mentioned one side of the electro-optic plate is deviated from 90.degree.. The end face of the first optical waveguide at that side forms a reflecting surface and is connected to one end of a fourth optical waveguide. The other end of the fourth optical waveguide extends to another side of the electro-optic plate. By forming end faces of the second and fourth optical waveguides at different sides of the electro-optic plate, optical active elements can be fixed directly to such end faces, even if the electro-optic plate is small.

REFERENCES:
patent: 4265541 (1981-05-01), Leclerc et al.
patent: 4468085 (1984-08-01), Papuchon et al.
patent: 4645345 (1987-02-01), Domann
patent: 4938594 (1990-07-01), Pavlath

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