Optical integrated modulator

Details Optical integrated modulator Optical integrated modulator

1990-08-14

1991-10-29

Healy, Brian

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

385 8, 385 14, G02B 610

Patent

active

050610309

ABSTRACT:
This invention enables low voltage operation and improves matching in velocities of the radio frequency and of light by lowering effective index and to thereby expand modulation frequency bandwidth by structuring an optical modulator where a substrate of the material of which refractive index changes by an application of electric field description, and the insulating buffer layers are eliminated from the regions other than the electrodes. By structuring the modulator in a manner to satisfy the prescribed conditions with dimensions of each unit, the light can be matched in complete phase matching (group velocity matching) with radio frequency while characteristic impedance of the electrodes is fixed at a desired value.

REFERENCES:
patent: 4198116 (1980-04-01), Papuchon
patent: 4427260 (1984-01-01), Puech et al.
patent: 4867516 (1989-09-01), Baken
patent: 4887878 (1989-12-01), Robinson et al.
patent: 4983006 (1991-01-01), Nishimoto
patent: 4984861 (1991-01-01), Suchoski, Jr. et al.
patent: 5013114 (1991-05-01), Young

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