Wide-band optical modulator

Details Wide-band optical modulator Wide-band optical modulator

1987-08-17

1989-09-12

Tarcza, Thomas H.

Amplifiers

Parametric amplifiers

Semiconductor type

350 9613, 350 9614, G02F 103

Patent

active

048664065

ABSTRACT:
The present invention provides a wide band optical modulator comprising an optical waveguide which is provided on a substrate and comprises a substance having electrooptic effects, a laminate which is provided on the optical waveguide and comprises a substance having a refractive index smaller than that of the optical waveguide, and two traveling-wave electrodes which are provided opposite to each other on the parallel side surfaces of the laminate in the traveling direction of light so as to hold the laminate therebetween. When the laminate provided on the optical waveguide is replaced by a gap, similar effects to those of the above-described optical modulator can be obtained.

REFERENCES:
patent: 3695745 (1972-10-01), Furukawa
patent: 3990775 (1976-11-01), Kaminow et al.
patent: 4048591 (1977-09-01), Auracher
patent: 4111523 (1978-09-01), Kaminow et al.
patent: 4166669 (1979-09-01), Leonberger et al.
patent: 4268116 (1981-05-01), Schmadel et al.
patent: 4683448 (1987-07-01), Duchet et al.

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