Method and apparatus for creating circumferential flat surfaces on round cross section polymer optical fiber
US7206493B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2006 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | May 16, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2804
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
For creating flat surfaces along the circumference of a polymer optical fiber of a round cross section by machining, the polymer optical fiber is wound onto a mandrel in a plurality of windings, the mandrel having a generally non-circular cross section with at least one projecting sector in which the radius is constant or, starting from an apex of the largest radius, in which the radius linearly decreases on both sides with an increasing angular distance to the apex, the machining including using a cutting chisel of a high quality for turning-off the polymer optical fiber in the projecting sector of the mandrel. Subsequently, the polymer optical fiber is cut to several pieces that can be used for the manufacture of optical splitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.