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:
Feb. 19, 2008
Filed:
Mar. 24, 2006
David R. Peale, San Diego, CA (US);
Harald Hess, La Jolla, CA (US);
David R. Peale, San Diego, CA (US);
Harald Hess, La Jolla, CA (US);
KLA-Tencor Technologies Corporation, Milpitas, CA (US);
Abstract
A multi-port planar evanescent coupler having N inputs and M outputs, where both N and M are each no less than three, formed of combinations of at least one of at least one planar evanescent 2×2 coupler and at least one planar evanescent 3×3 coupler subunits, with phase shifting segments in selected waveguides disposed between the planar evanescent coupler subunits. The multi-port planar evanescent coupler can be used in phase measurement and detection devices, such as interferometers, optical receivers, and laser gyroscopes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile