Technique for fabricating a gas-in-glass fiber
US4623373A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 1985 |
| Grant date | Nov 18, 1986 |
| Priority date | — |
| Expiry date | Feb 15, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C25/607
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a technique for infusing and maintaining a gas-in-glass fiber. In the present technique, a length of an optical fiber, e.g., a single mode fiber, is placed in a pressure vessel with the ends of the fiber protruding from the vessel walls through seals. The vessel is then partially or fully filled with a medium, such as a gas or water, and the vessel sealed. In one embodiment, a container, including both the predetermined gas under pressure and a rupture disc in a container wall, is disposed within the vessel. Pressure is then applied to the sealed vessel until the rupture disc implodes and releases the gas for subsequent infusion. In a second embodiment, the predetermined gas is introduced into the vessel from an outside pressurized source until a first predetermined pressure is obtained within the vessel. A predetermined amount of additional pressure from a second pressure source is then supplied to the vessel until a second predetermined pressure is reached in the vessel. Once the final pressure is achieved by either embodiment, the vessel is maintained in this state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.