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Published December 1996 | Published
Book Section - Chapter Open

Antenna-Coupled Millimeter-Wave Electro-optic Modulators for 20 to 100 GHz

Abstract

Coupling the signal to the electrodes of an integrated electro-optical modulator with an array of antennas is used to velocity-match the modulation and optical waves, greatly extending-the length-to-modulation frequency product of the modulator. In addition, antenna coupling eliminates the parasitic elements associated with coax connectors, matching transformers and bond wires. This paper summarizes the results obtained to date with this technique at 20 to 100 GHz, with phase modulators, Mach-Zehnder modulators, and delta-beta directional coupler modulators.

Additional Information

© 1996 IEEE. Date of Current Version: 06 August 2002. This work supported by USAF Rome Laboratory under contracts F30602-92-C-0005 and F30602-96-C-0020, N. P. Bernstein, Project Engineer. We wish to acknowledge the technical support of R. E. Johnson and J. Pekulski, and helpful discussions with C. Cox, III, and B. M. Hendrickson.

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