Arrangement for characterizing and reducing multi-path...

Details Arrangement for characterizing and reducing multi-path... Arrangement for characterizing and reducing multi-path...

2005-03-04

2008-08-19

Singh, Dalzid (Department: 2613)

Optical communications

Diagnostic testing

Fault detection

C398S025000, C398S033000

Reexamination Certificate

active

07415206

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.

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patent: 2005/0036788 (2005-02-01), Matsuoka et al.

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