Manufacture of concentric coatings for fiber waveguides
US4363827A · kind A · utility
10Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1981 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C25/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The forward scattering pattern from a transversely-illuminated polymer-coated optical fiber can be used to insure well-centered coatings on optical fibers. A simple interpretation of the scattering pattern provides an error signal to guide compensatory coating cup alignment. For polymers coating materials with a refractive index higher than that of silica, the scattering pattern contains caustic surfaces. If the coating is eccentric in a direction perpendicular to the incident rays, the positions of the caustic surfaces vary monotonically with eccentricity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.