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. 31, 1994
Filed:
Jun. 21, 1993
Applicant:
Inventor:
Gustav Veith, Bad Liebenzell, DE;
Assignee:
Alcatel SEL A.G., Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; H01L / ;
U.S. Cl.
CPC ...
385 24 ; 385 27 ; 385 42 ; 359179 ; 359188 ; 359337 ; 359341 ;
Abstract
In optical transmission systems with fiber-optic amplifiers, an interruption of the fiber-optic link, e.g., due to fiber breakage, may cause a giant pulse to develop. To prevent the giant pulse from propagating in the fiber-optic link, an optical filter (7) which blocks the wavelength region of the pulse is placed in the fiber-optic link. The wavelength of the optical signal must be chosen to lie outside the wavelength region of the maximum gain of the fiber-optic amplifier.