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Specialty Applications

Specialty optical fibers are the fundamental enablers to the devices that make optical communications networks and sensing systems operable by coupling, amplifying, filtering, splitting and combining light signals.

AFL designs and manufactures innovative specialty Verrillon® optical fibers used in optical components and modules. We collaborate closely with our customers to develop fibers and components that improve their system performance, lower manufacturing and material costs, reduce component footprint, expand network functionality and enhance manufacturing process automation.

In addition to custom products, AFL’s Communications Specialty Optical Fibers include coupler fibers, erbium-doped, photosensitive, select cutoff and polarization-maintaining fibers. These products are available in various diameter sizes including 80 µm and 125 µm, as well as a wide range of numerical apertures refractive index profiles and coating combinations.


The VSS700-BI80 is a Reduced-Diameter Bend-Insensitive Single-Mode 80 μm Cladding Diameter. This fiber was designed to offer Small Form Factor (SFF) and low macrobend-loss for applications requiring compact packaging and tight bending configurations.
Verrillon® VSS200 High-Performance Erbium Doped Fibers from AFL are suited for EDFA applications in telecommunnications and sensing. This 980nm-pumped fiber has been widely deployed in the Optical Network worldwide.
Verrillon® VMM1000 Series of Multimode Fibers from AFL are available in a variety of coatings and coating combinations, including Acrylates, Polyimide, Silicone-PFA and Carbon.
Verrillon® VSS200 Series Single-mode Coupler Fibers from AFL are available in coatings and coating combinations, including Acrylates, Polyimide, Silicone-PFA and Carbon. The WDM 980nm operating coupler fiber has been widely incorporated in EDFAs for optical communications networks.
Verrillon® VSS200 Series Photosensitive Fiber from AFL exhibits exceptional performance in Fiber Bragg Grating (FBG) writing with extremely short exposure time and near-zero cladding mode loss for high-quality FBGs. These fibers are available with Acrylates, Mid-Temp Acrylate and Silicone-PFA coatings.