Maro Publications

Coated Fiber Optics

Notes

Patent Abstracts

Patent Titles

*10/11/2013 
from 7/16/2013

Maro Encyclopedia

Coatings

Fiber Optics

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Notes

1. “Optical fibers are frequently coated with two or more superposed radiation-curable coatings immediately after the fiber is produced by drawing. The coating which directly contacts the optical fiber is called the "inner Primary Coating" and an overlaying coating is called the "outer Primary Coating." In some references, the inner Primary Coating is also called simply the "Primary Coating" and the outer Primary Coating is called a "Secondary Coating." Inner Primary Coatings are softer than Secondary Coatings.

The relatively soft inner Primary Coating provides resistance to microbending which results in attenuation of the signal transmission capability of the coated optical fiber and is therefore undesirable.  The harder outer Primary Coating, that is, the Secondary Coating, provides resistance to handling forces such as those encountered when the coated fiber is ribboned and/or cabled.

” [Coated Optical Fibers, US Patent 8,426,021 (7/16/20913)]

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Patent Abstracts

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Patent Titles

9/24/2013    

3. 8,541,064 
Methods and systems for producing thermoplastic coated optical fibers 

7/9/2013

2. 8,426,021 
D 1364 BT secondary coatings on optical fiber 

1. 8,426,020 
D1381 supercoatings for optical fiber 

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Interested!!
Bookmark this page to follow future developments!.
(RDC 7/16/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921
E-Mail: cornelrd@bee.net  

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Copyright 2013 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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* Date of latest addition; date of first entry is 7/16/2013.