Patent · US Active

Determining a polarization-related characteristic of an optical link

US9829429B2 · kind B2 · utility

3Cited by

28References

40Claims

0Family size

Assignee

EXFO Inc. · CA

Inventors

Normand Cyr · Magnolia Trace, CA
Hongxin Chen · Shanghai, CN
Gregory Walter Schinn · Quebec City, CA

Key dates

Filing date	Feb 14, 2013
Grant date	Nov 28, 2017
Priority date	—
Expiry date	May 15, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F17/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A polarization-related characteristic of an optical path is determined from a predetermined function of the mean-square of a plurality of differences between polarization-analyzed optical power parameters corresponding to pairs of wavelengths mutually spaced about a midpoint wavelength by a small optical frequency difference. At least some of the said differences correspond to wavelength pairs measured under conditions where at least one of midpoint wavelength, input state of polarization (I-SOP) or analyzed state of polarization (A-SOP) of a pair is different.

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