The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 1986
Filed:
Feb. 15, 1985
Julian Stone, Rumson, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
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.