Multifiber optical connector plug with low reflection and low insertion loss
US5214730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1992 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | May 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3863
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multifiber optical connector plug capable of realizing low reflection and low insertion loss, without using the refractive index matching material. The multifiber optical connector plug includes a connector plug member made of a plastic material, having a connecting facet on which endfaces of the optical fibers to be connected with other optical fibers are arranged in a transverse direction between the guide pin insertion holes, with the endfaces of the optical fibers projecting out of the connecting facet, the connecting facet being inclined with respect to an axial direction along optical axes of the optical fibers by an angle which is larger than a total reflection critical angle of light beams transmitted through the optical fibers. The connecting facet may have a flat surface shape or a convex ellipsoidal surface shape. A multifiber optical connector can be formed by a pair of such multifiber optical connector plugs with spring member for pressing the multifiber optical connector plugs toward each other in the axial direction and guide pins for aligning the multifiber optical connector plugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.