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:
Jul. 28, 1992
Filed:
Mar. 06, 1991
Applicant:
Inventors:
Jean-Francois Marcerou, Courcouronnes, FR;
Herve Fevrier, Massy, FR;
Jacques Auge, Saint Cheron, FR;
Assignee:
Alcatel N.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ; G02B / ;
U.S. Cl.
CPC ...
359341 ; 385-5 ; 372-6 ;
Abstract
An erbium-doped fiber optical amplifier, characterized in that said fiber has a mode radius which is not greater than 2.7 .mu.m at a wavelength of 1.55 .mu.m, and in that it has at least one pump wavelength situated in the following regions of the spectrum: 0.98 .mu.m.+-.0.4 .mu.m and 1.48 .mu.m.+-.0.4 .mu.m; the region of the spectrum of at least one signal to be amplified being 1.5 .mu.m to 1.6 .mu.m.