Broad-band substrate-wave-coupled electro-optic modulator

Details Broad-band substrate-wave-coupled electro-optic modulator Broad-band substrate-wave-coupled electro-optic modulator

1992-11-12

1994-05-03

Lee, John D.

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

385 3, 343720, G02F 101

Patent

active

053095316

ABSTRACT:
An electro-optic modulator in which the input electromagnetic signal is launched as a substrate mode in the electro-optic material. Broadband endfire antennas on the top surface of the substrate couple the signal to electrodes positioned above the optical waveguide in the substrate to concentrate the input signal and achieve high electric field strength in the vicinity of the optical waveguide. The endfire antennas are oriented with respect to the optical waveguides so as to compensate for the phase velocity mismatch between the electromagnetic signal and the light beam in the optical waveguide.

REFERENCES:
patent: 4691984 (1987-09-01), Thaniyavarn
patent: 5076655 (1991-12-01), Bridges
patent: 5101293 (1992-03-01), Kemeny
patent: 5150436 (1992-09-01), Jaeger et al.
patent: 5153930 (1992-10-01), DuPuy et al.

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