Abstract: Methods of reshaping ferrules (20) used in optical fiber cables assemblies (170) are disclosed. The reshaping methods reduce a core-to-ferrule concentricity error (E), which improves coupling efficiency and optical transmission. The methods include measuring a distance (?) and angular direction (?) from a true center (30) of the ferrule to the core (46), wherein the true center (30) is based on an outer surface (26) of the ferrule. The methods also include reshaping at least a portion (26P) of the ferrule (20) to define a new true center (30?) of the ferrule (20) and reduce the distance (?). A variety of reshaping techniques are also disclosed.

Abstract: A loose-tube fiber optic cable includes a cable core and a jacket. The cable core includes a buffer tube and an optical fiber, where the optical fiber is within the buffer tube. The buffer tube may be positioned at an interior region of the loose-tube fiber optic cable and the jacket may be positioned around the cable core. Material forming the buffer tube may have a composition of greater than or equal to about 70% by weight of a polymer that includes propylene monomers. At least a portion of the polymer may have a beta phase crystal structure characterized by a pseudo hexagonal crystal structure.