Patent · US Active

Direct extrusion method for the fabrication of photonic band gap (PBG) fibers and fiber preforms

US8571371B2 · kind B2 · utility

2Cited by

13References

11Claims

0Family size

Assignee

United States of America as represented by the Secretary of the Air Force · US

Inventors

Daniel J. Gibson · Greenbelt, US
Jasbinder S. Sanghera · Greenbelt, US
Frederic H. Kung · Alexandria, US
Pablo C. Pureza · Burke, US
Robert E. Miklos · La Plata, US
Guillermo R. Villalobos · Springfield, US
Leslie Brandon Shaw · Salem, US
Ishwar D. Aggarwal · Waxhaw, US

Key dates

Filing date	Jun 15, 2011
Grant date	Oct 29, 2013
Priority date	—
Expiry date	Apr 17, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B2203/42
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method and apparatus for making a substantially void-free preform for a microstructured optical fiber using a one-step process is provided. A preform is prepared from specialty glasses using a direct extrusion method. A die for use with the direct extrusion method is also provided, and a method for drawing the preform into a HC-PBG fiber for use in transmitting infra-red wavelength light is also provided. The preform comprises an outer jacket made of solid glass, a cladding having a plurality of air holes arranged in a desired pattern within the jacket, and a core which is hollow.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.