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. 22, 2005
Filed:
Feb. 15, 2001
Applicants:
Patrick C. Chou, Fremont, CA (US);
John M. Fini, Cambridge, MA (US);
Hermann A. Haus, Lexington, MA (US);
Inventors:
Patrick C. Chou, Fremont, CA (US);
John M. Fini, Cambridge, MA (US);
Hermann A. Haus, Lexington, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N021/00 ;
U.S. Cl.
CPC ...
Abstract
A real-time optical compensating apparatus reduces the PMD in an optical fiber by determining the principal states of polarization of the optical fiber and delaying one principal state of polarization with respect to the other.