Multimode optical fibre
US-9459400-B2 · Oct 4, 2016 · US
Method and device for manufacturing an optical preform
US9051205B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9051205-B2 |
| Application number | US-64278409-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2009 |
| Priority date | Dec 19, 2008 |
| Publication date | Jun 9, 2015 |
| Grant date | Jun 9, 2015 |
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Abstract
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Disclosed is a method and device for manufacturing an optical preform. The method includes supplying dopant-containing glass-forming gases to the interior of a hollow glass substrate tube. Furthermore, the supply flow of dopant-containing glass-forming gases includes a main gas flow and one or more secondary gas flows. The secondary gas flows are divided into subflows, which are supplied to the interior of the hollow glass substrate tube together with the main gas flow. The method further includes effecting deposition of glass layers on the interior surface of the hollow glass substrate tube.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing an optical-fiber preform, comprising: subdividing a secondary gas flow that includes one or more dopants into a plurality of parallel dopant-containing subflows; setting a mass flow rate for each of the dopant-containing subflows; supplying the dopant-containing subflows and a main gas flow that includes glass-forming gases to the interior of a hollow substrate tube having an inlet side, an outlet side, and an interior su…
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Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9051205B2 cover?
- Disclosed is a method and device for manufacturing an optical preform. The method includes supplying dopant-containing glass-forming gases to the interior of a hollow glass substrate tube. Furthermore, the supply flow of dopant-containing glass-forming gases includes a main gas flow and one or more secondary gas flows. The secondary gas flows are divided into subflows, which are supplied to the…
- Who is the assignee on this patent?
- Milicevic Igor, Van Stralen Mattheus Jacobus Nicolaas, Hartsuiker Johannes Antoon, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C03B37/01807. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 09 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).