Patent · US Active

Optical network, monitoring unit and monitoring method

US8452173B2 · kind B2 · utility

6Cited by

5References

9Claims

0Family size

Assignee

Alcatel Lucent · FR

Inventors

Jörg Hehmann · Nürnberg, DE
Harald Schmuck · Schwieberdingen, DE
Michael Straub · Longmont, US

Key dates

Filing date	Apr 23, 2008
Grant date	May 28, 2013
Priority date	—
Expiry date	Nov 30, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q2011/0083
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An optical network having a tree-like structure with a main line and a plurality of branches, at least two of the branches comprising a monitoring unit for upstream signalling to the main line, wherein each of the monitoring units comprises a signal generation unit with a light source for generation of a pre-defined optical signal, and the monitoring units are construed to generate pre-defined optical signals which are different from each other, as well as a monitoring unit for generating a periodic upstream signal in such an optical network and a method for monitoring such an optical network.

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