The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2001
Filed:
Oct. 27, 1999
Henry F. Taylor, College Station, TX (US);
Texas A&M University System, College Station, TX (US);
Abstract
A highly efficient electrooptic means and method of light modulation utilizing slow wave optical propagation is provided. A grating structure (,) integrated with a single mode optical waveguide (,) on an electrooptic substrate (,) induces coupling between forward- and reverse-propagating light waves. This contradirectional coupling leads to a reduction in the optical propagation speed in the forward direction. Electrodes (,and,) are provided for applying an electric field to modulate the light propagating in the waveguide (,) via the linear electrooptic (Pockels) effect. In a preferred embodiment, a modulating radio frequency or microwave signal applied to the electrodes (,and,) propagates in the same direction as the modulated light wave at substantially the same velocity.