Patent · US Active

Method and system for localizing an attenuation change location in an optical waveguide

US8081306B2 · kind B2 · utility

0Cited by

5References

31Claims

0Family size

Assignee

ADVA AG Optical Networking · DE

Inventors

Andreas Klar · Meiningen, DE
Michael Eiselt · Tauberbischofsheim, DE

Key dates

Filing date	Mar 20, 2008
Grant date	Dec 20, 2011
Priority date	—
Expiry date	Oct 2, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01M11/335
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention provides a method and a system for localizing an attenuation change location in an optical waveguide, wherein the attenuation change location can be determined depending on a time difference (ΔT) between signal power change instants of optical signals having different wavelengths (λ1, λ2) that are transmitted via the optical waveguide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.