Aerosol generator
US8167282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2207/87
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of fabricating a glass body that includes a multiplicity of constituents, at least one of which is a dopant (e.g., a rare-earth element) having a low vapor pressure (LVP) precursor includes the steps of: (a) generating an aerosol from the LVP precursor; (b) separately generating vapors of the other constituents; (c) convecting the aerosol and vapors to deposition system including a substrate; and (d) forming at least one doped layer on a surface of the substrate. In one embodiment, the method also includes filtering the aerosol so as to remove aerosol particles outside of a particular range of sizes. Also described is a unique aerosol generator that is particularly useful in generating aerosols of rare-earth dopants. Particular embodiments directed to the fabrication of Yb-doped optical fibers are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.