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Specialty Fibers

Definition: optical fibers with special designs or materials

More general term: optical fibers

More specific terms: fluoride fibers, phosphate fibers, active fibers, polarization-maintaining fibers, tapered fibers, photonic crystal fibers

German: Spezialfasern

Category: fiber optics and waveguides

How to cite the article; suggest additional literature


Specialty optical fibers are usually understood as optical fibers which have at least one special property, distinguishing them from standard fibers. However, there is no universally accepted definition of the term standard fiber. One may regard a standard fiber as a simple step-index fiber, made with a standard material (in case of glass fibers: silica) and with common values of parameters like the core size and numerical aperture. Specialty fibers can then belong to various groups:

As there can be so different special properties, it is preferable to use a more specific term than specialty fibers, particularly in scientific publications.


The RP Photonics Buyer's Guide contains 53 suppliers for specialty fibers. Among them:

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See also: fibers, fiber optics, rare-earth-doped fibers, double-clad fibers, photonic crystal fibers, mid-infrared fibers, single-crystal fibers, polarization-maintaining fibers, single-polarization fibers, few-mode fibers, multi-core fibers
and other articles in the category fiber optics and waveguides


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