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. 03, 2002
Filed:
Jan. 04, 2001
Applicant:
Inventors:
Nicholas J. Frigo, Red Bank, NJ (US);
Evan L. Goldstein, Princeton, NJ (US);
Lih-Yuan Lin, Little Silver, NJ (US);
Chuan Pu, Middletown, NJ (US);
Robert William Tkach, Little Silver, NJ (US);
Assignee:
AT&T Corp., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/03 ;
U.S. Cl.
CPC ...
G02F 1/03 ;
Abstract
Methods and systems for controlling the state of polarization of an optical beam using micro-machined devices are provided. By cascading a number of simple polarization state rotators integrated on a number of silicon substrates, the state of polarization of an optical beam can be effectively manipulated to any point on the Poincaré sphere.