Transmitter and method for transmitting messages on an optical fiber

US7738791B2 · kind B2 · utility

Assignee

• ERICSSON AB · SE

Inventor

• Cornelius Fürst · Fürstenfeldbruck, DE

Key dates

• Filing date: Jan 21, 2004
• Grant date: Jun 15, 2010
• Expiry date: Sep 7, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B10/506
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

For transmitting information on an optical fiber, a plurality of information carrier channels at different carrier frequencies and a plurality of filling channels are used. The filling channels are transmitted together with the information carrier channels along the fiber. The total optical power of the information carrier channels and the filling channels transmitted on the fiber is maintained constant by compensating every change of the optical power of the information carrier channels by an inverse change of the optical power of the filling channels. The change of the optical power of the filling channels is distributed to the individual filling channels such that a minimum displacement of the center of gravity of the common spectrum of information carrier channels and filling channels results.