Low dispersion optical fiber wave guiding structures with periodically deformed waveguide axis
US3969016A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | May 9, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/687
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosure is directed to optical fiber waveguiding structures, and techniques for fabricating the same, which are designed to have reduced modal dispersion as a result of the deliberate enhancement of mode coupling in the fibers. The mode coupling is achieved in each of the structures by means of an enveloping outer jacket, typically of plastic, which is selectively deformed so as to modify the straightness of the fiber axes in a spatially periodic manner. Several alternative techniques are presented for properly deforming the outer jacket either before or after it is combined with the fibers. Since, with these structures and techniques, the outer jacket provides the desired fiber perturbations, the fibers themselves can be fabricated using standard techniques without the need for any special procedures for modifying their parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.