Arrangement for characterizing and reducing multi-path interference (MPI) and/or optical return loss (ORL) in optical transmission links having multiple discrete reflection sources
US7415206B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2005 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Jun 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/071
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical transmission link having discrete optical reflection sources that cause multi path interference (MPI) and optical return loss (ORL), a method determines how to reduce to beneath a predetermined threshold, a predetermined phenomenon (MPI or ORL or a composite of the two). The method involves (408/428/458) measuring link parameters of the optical transmission link using an optical reflectometry technique, (410/430/460) calculating a level of the predetermined phenomenon based on the link parameters, and (416/436/466) simulating replacement of a number of the reflection sources until the calculated level of the predetermined phenomenon is reduced to less than the predetermined threshold. The method may be performed within a portable optical reflectometry device to facilitate field simulations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.