Systems and methods for accurately measuring low values of polarization mode dispersion in an optical fiber using localized external perturbation induced low mode coupling
US6704100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Aug 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/336
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods are disclosed for measuring Polarization Mode Dispersion (PMD) of single-mode optical fiber. The method allows for a faster and easier method of accurately measuring intrinsic ultra low PMD optical fiber in a low mode coupling state. The method involves the introduction of a plurality of localized external perturbations on the optical fiber, after which the optical fiber is allowed to reach a steady state, and then measurement of the differential group delay occurs using standard measurement techniques. The plurality of localized external perturbations is altered followed by another measurement of the differential group delay. After obtaining a sufficient number of measurements to provide a Maxwellian distribution, the Polarization Mode Dispersion value can be calculated as the average of the distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.