Fiber optic pigtail design for reducing insertion loss and insertion loss ripple
US7120337B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2005 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Mar 29, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4202
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
One embodiment of an optical fiber for reducing insertion loss and insertion loss ripple includes a tapered region where the optical fiber has a diameter of approximately 125 microns at a first end and a diameter of approximately 50 microns at a second end. The cladding layer of the tapered region is tapered from the first end towards the second end. This section of the optical fiber may be tapered using an etch process or any other technically feasible process. The tapered configuration enables the distance between the optical axes of two optical fibers inserted into a ferrule to be reduced from approximately 125 microns to approximately 50 microns. Decreasing the distance between the optical axes causes a reduction in both insertion loss and insertion loss ripple.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.