Distortion measuring device, method, program, and recording medium
US7397544B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 2007 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Jan 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/319
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a distortion measuring device including a Brillouin scattered light spectrum recording unit which records a spectrum of Brillouin scattered light generated in an optical fiber as a result of supplying incident light, a peak frequency approximating unit which acquires an approximated peak frequency at which the recorded spectrum takes a maximal value, a peak frequency deriving unit which derives a peak frequency at which the spectrum takes the maximal value within a range of a frequency determined based on a magnitude of the spectrum at the approximated peak frequency, amid a distortion deriving unit which derives distortion of the optical fiber based on the derived peak frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.