Glass Optical Fibers are coated with organic coatings to provide physical protect and to preserve high strength. Specialized coatings are available for use as: 1. refractive index, plastic claddings; 2. soft (low modulus) buffers providing resista to microbending, and 3. tough, durable, secondary buffers for protection, long life easy cabling. New coatings are also available which provide a wide range of adhesion the glass allowing for a choice in removal techniques. This paper presents an overview of available organic coatings, their contributions the fiber producer and the end user and an indication of advances which can be expected the future. A comparison is made of relative cost factors and methods of cost reduction.
Kenneth R. Lawson,
"Contributions And Effects Of Coatings On Optical Fibers", Proc. SPIE 0404, Optical Fibers in Adverse Environments, (29 March 1984); doi: 10.1117/12.935636; https://doi.org/10.1117/12.935636