Connection structure of optical fibers sealed in metal pipes and method for connecting optical fibers sealed in metal pipes
US5076657A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 25, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Sep 25, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4439
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Metal pipes containing optical fibers are connected to each other directly or indirectly by use of a sleeve. In case of using the sleeve, the sleeve is connected at one end to one of the metal pipes, after the optical fibers are connected. Then, the sleeve is elongated by a predetermined length, so that the sleeve is connected at the other end to the other metal pipe. Consequently, no tensile stress resides in the connected optical fibers in the connected structure. When the metal pipes are connected directly to each other, one or both of the metal pipes are elongated, after the optical fibers are connected. Then, the metal pipes are connected by used of the elongated portions. Consequently, the same result is obtained as using the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.