Varied insertion loss fiber optic coupling and method of making same
US5553179A · kind A · utility
16Cited by
25References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Sep 3, 1996 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2856
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A varied ratio coupler, and a method of forming the same, constructed and arranged, in a unitary structure, to cause optical power in an input optical fiber to couple asymmetrically to at least two output optical fibers in a manner establishing different insertion losses between the input fiber and at least two output optical fibers. The coupler includes a central fiber surrounded by a close-packed ring of fibers. In certain preferred embodiments, the coupler has a bend that lies in a preselected plane and has a radius of curvature that is selected to provide the above difference in the insertion losses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.