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. 18, 2003
Filed:
Feb. 17, 2000
Applicant:
Inventor:
Harshad Sardesai, Elkridge, MD (US);
Assignee:
Ciena Corporation, Linthicum, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/33 ; G02F 1/295 ; H04J 1/402 ; H04B 1/000 ;
U.S. Cl.
CPC ...
G02F 1/33 ; G02F 1/295 ; H04J 1/402 ; H04B 1/000 ;
Abstract
Consistent with the present invention, in-fiber Bragg gratings are used to demultiplex optical signals in a WDM optical communication system. The in-fiber Bragg gratings also perform dispersion compensation of the selected optical signals. As a result, additional segments of DCF for further dispersion compensation are rendered unnecessary. Improved performance is thus achieved with an inexpensive and simplified system design.