Method of detecting variation in the diameter of an optical fiber and optical fiber fabrication method
US5661553A · kind A · utility
6Cited by
2References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 4, 1996 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Apr 4, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting variation in the diameter of an optical fiber includes the following steps: PA1 transversely illuminating a portion of the fiber by means of an incident light beam, PA1 measuring a radiation pattern produced by the fiber portion in a predetermined acute angular sector around the fiber, and PA1 detecting variation in the diameter of the optical fiber causing modification of the angular radiation pattern produced in this way. The angular sector is defined by angles of 90.degree. and 105.degree. or by angles of 255.degree. and 270.degree..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.