Method of providing a 1xN fiber optic coupler
US5017206A · kind A · utility
26Cited by
21References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1990 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2856
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fiber optic coupler is formed by assembling a coupler preform having two concentric glass tubes having a gap between them. The shape and/or size of the inner tube relative to the shape and/or size of the outer tube is such that a plurality of output optical fibers can be equally spaced in the gap. An input optical fiber is disposed in an aperture in the inner tube. The input and output fibers extend through the midregion of the resultant coupler preform. The midregion is heated to collapse it about the fibers, and the central portion of the midregion is stretched to reduce the diameter over a predetermined length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.