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:
Mar. 28, 2000
Filed:
May. 28, 1998
Amaury Jourdan, Sevres, FR;
Michel Sotom, Paris, FR;
Franck Bruyere, Paris, FR;
Guy Soulage, Vitry sur Seine, FR;
Alcatel, Paris, FR;
Abstract
The invention relates to an optical transmission system comprising a transmission line which includes at least one optical fiber amplifier. According to the invention, a stabilized gain optical amplifier is coupled to the input of the line, said stabilized gain amplifier including a local oscillator suitable for emitting an auxiliary compensation wave at a wavelength .lambda.loc which lies in the gain band of each optical fiber amplifier of the line. Provision is also made to modulate the pumping current of said stabilized gain amplifier to convey service information. The invention is applicable to optical transmission.