Method and apparatus for measuring dispersion zero along an optical fiber
US5619320A · kind A · utility
10Cited by
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26Claims
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Key dates
| Filing date | Oct 31, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Oct 31, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/338
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for non-destructively measuring dispersion-zero wavelengths along an optical fiber makes use of a four-photon-mixing technique to generate mixed, amplified, idler signals at positions or ranges along the fiber. The dispersion zero wavelengths are then calculated using the wavelengths of the generated idler signals after taking into account inaccuracies due to higher order phenomena.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.