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. 06, 2003
Filed:
Aug. 21, 2001
Applicant:
Inventors:
Matthew Julius Andrejco, Clinton, NJ (US);
Inger Pihl Byriel, Vanloese, DK;
Bera Palsdottir, Copenhagen, DK;
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/22 ; H01S 3/00 ;
U.S. Cl.
CPC ...
G02B 6/22 ; H01S 3/00 ;
Abstract
The specification describes rare earth doped fiber amplifier devices for operation in the extended L-band, i.e. at wavelengths from 1565 nm to above 1610 nm. High efficiency and flat gain spectra are obtained using a high silica based fiber codoped with Er, Al, Ge, and P and an NA of at least 0.15.