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:
May. 04, 2004
Filed:
Dec. 09, 2002
Applicant:
Inventors:
Terrance L. Worchesky, Ellicott City, MD (US);
Lance A. Wood, Winter Park, CO (US);
Assignee:
Lockheed Martin Corporation, Bethesda, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/34 ; G02B 6/26 ;
U.S. Cl.
CPC ...
G02B 6/34 ; G02B 6/26 ;
Abstract
An optical switch is disclosed having what may be characterized as an optically-induced grating. One embodiment of such an optical switch includes first and second waveguides. An optical mask is formed on a side of the first waveguide opposite that which faces the second waveguide. Multiple slits exist in this optical mask in alignment with an output from a light source. Changing the mode of this light force changes the output of the light source directed onto the slits, and changes the state of the first and second waveguides from being optically decoupled to optically coupled.