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:
Jan. 11, 2005
Filed:
Jan. 18, 2002
James M. Florence, Dallas, TX (US);
James M. Florence, Dallas, TX (US);
Raytheon Company, Lexington, MA (US);
Abstract
An optical add/drop multiplexer () includes a primary input port (), an express output port (), an add input port (), and a drop output port (). Radiation from the primary input port is reflected by a thin film filter (), is routed back to the filter by a redirecting arrangement (38, 151-153, 251), is then reflected again by the filter, and then travels to the express output port. A signal component from the primary input port at a predetermined wavelength is extracted by the filter as it effects the first reflection, and is supplied to the drop output port. An add signal from the add input port is directed by the filter to the express output port.