Expanded-beam ferrule with high coupling efficiency for optical interface devices
US9645325B2 · kind B2 · utility
5Cited by
20References
20Claims
0Family size
Assignee
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Key dates
| Filing date | May 1, 2015 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | May 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3885
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An expanded-beam ferrule for an optical interface device has a ferrule body with a fiber support feature that supports an optical fiber. The ferrule body defines a lens having a planar back surface and a convex and aspheric front surface. The lens has a select amount of on-axis spherical aberration that gives rise to an improved coupling efficiency and in particular provided tolerance to misalignments between confronting expanded-beam ferrules used in an expanded-beam optical interface device. The ferrule body can also include multiple lenses and can support multiple optical fibers in operable alignment thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.