Electrically controlled optical device

Details Electrically controlled optical device Electrically controlled optical device

1992-04-03

1993-06-15

Lee, John D.

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

385 2, G02B 610

Patent

active

052206270

ABSTRACT:
An electrically controlled optical device effective index includes a traveling wave electrode, a shield conductor and a thick buffer layer of a low dielectric constant. The thickness of an overlaid layer disposed between the traveling wave electrode and the shield conductor as well as the thickness of the buffer layer is so determined that an effective index of a microwave transmitted through the traveling wave electrode approaches an effective index of light transmitted through an optical waveguide, and that a microwave conductor loss is reduced, and that a characteristic impedance of said traveling wave electrode approaches a characteristic impedance of an associated external microwave circuit.

REFERENCES:
patent: 3923376 (1975-12-01), Martin
patent: 5125049 (1992-06-01), Hamel et al.

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