Optical fibre feedthrough
US5305413A · kind A · utility
11Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1992 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Sep 21, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4248
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fibre feedthrough in which a polarization maintaining (PM) fibre is sealed within a metallic sleeve by a glass seal. The seal applies asymmetric stresses to the fibre which is orientated so that they reinforce its PM properties. This arrangement reduces the manufacturing tolerances needed to avoid destroying the PM properties of the fibre associated with symmetric stress seals. It has application to packages for opto-electronic components. A double optical fibre feedthrough is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.