Method and device for determining and compensating for the tilting of the spectrum in an optical fiber of a data transmission path

US7197210B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Jörg-Peter Elbers · Fürstenfeldbruck, DE
• Andreas Färbert · Munich, DE
• Christoph Glingener · Jade, DE
• Lutz Rapp · Deisenhofen, DE
• Christian Scheerer · Ottawa, CA

Key dates

• Filing date: Aug 10, 2001
• Grant date: Mar 27, 2007
• Expiry date: Aug 16, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B10/25073
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A method is provided for determining and setting the tilting of the spectrum of light signals in an optical fiber of an optical data transmission path having at least one part for varying the tilting of the spectrum, wherein the light signals are amplified by at least one optical amplifier and a portion of the amplified light signals is extracted, the extracted light signals are then partially guided through an influencing element with a known frequency-dependent intensity influence, the influencing element being an amplifier, a waveguide structure or a fiber with an amplifying action, the total intensity of the extracted light signals is then measured upstream and downstream of the influencing element prior to the extracted light signals being guided through the influencing element, and the control criterion is determined, based on the known frequency-dependent intensity influence of the influencing element and the measured total intensity, for setting the tilting via which the part for varying the tilting is controlled.