Many factors can affect the reliability and performance of a fiber connection.The best place to start is at the ferrule—one of the first components needed for superior connections and for high-performing connectivity. Connector ferrules can be made from various materials such as plastics, steel or ceramics. A majority of ferrules are typically made from zirconia ceramic, which is durable and manufactures well to strict tolerances for performance standards. Ceramic ferrules are manufactured with a selection of hole or inner (bore) diameters ranging from slightly larger than the optical fiber diameter to slightly smaller. This variance in hole size would allow for minute variations in the manufactured optical fiber cladding diameters. For example, for a 125-µm optical fiber, ferrules are available with hole sizes ranging from 124µm to 127µm.
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