A fiber optic ferrule includes a body extending from a first end to a second opposite end, with the body including an axial passage extending between the first and the second ends. The axial passage includes a first diameter portion having a diameter of at least 125 microns, a second diameter portion having a diameter of at least 250 microns and less than a diameter of a buffer, and a smooth and continuous transition between the first and the second diameter portions. The second diameter portion is positioned between the first diameter portion and the second end. The axial passage further defines a tapered shape at the second end extending inward from the second end toward the second diameter portion. In certain embodiments, another smooth and continuous transition can be provided between the taper shape and the second diameter portion. In certain embodiments, the axial passage is smooth and continuous between the first and the second ends of the body. A hub holds the ferrule. A method of assembling a terminated fiber optic cable is also provided.

A method of manufacturing fiber optic connectors includes precision molding optical ferrule assemblies around optical fibers for use in the connectors. The optical ferrule assemblies are over-molded in two-parts: a ferrule and a hub. The ferrule is molded around a coated section of fiber and a fiber tip is formed (e.g., using a laser) at a stripped section of the optical fiber at a location axially spaced from the ferrule. The fiber is pulled into the ferrule to align the tip and the hub is formed to complete the ferrule assembly.

The present disclosure relates to an optical fiber alignment device that has an alignment housing that includes first and second ends. The alignment housing defines a fiber insertion axis that extends through the alignment housing between the first and second ends. The alignment housing includes a fiber alignment region at an intermediate location between the first and second ends. First and second fiber alignment rods are positioned within the alignment housing. The first and second fiber alignment rods cooperate to define a fiber alignment groove that extends along the fiber insertion axis. The first and second fiber alignment rods each having rounded ends positioned at the first and second ends of the alignment housing.

Provided is a polyarylene sulfide resin composition which is good in strength, dimensional stability, and moldability in terms of a molded body thereof and is also capable of reducing wearing of a mold or molding machine at the time of molding of a molded body. The polyarylene sulfide resin composition contains 100 parts by mass of a polyarylene sulfide resin and 150 to 400 parts by mass of a glass bead, a sodium content of the polyarylene sulfide resin being 1,200 ppm or less, and the glass bead being surface-treated with a vinylsilane or an epoxysilane and having an average particle diameter of 30 m or less and a ratio between a cumulative 10% particle diameter and a cumulative 90% particle diameter {(cumulative 90% particle diameter)/(cumulative 10% particle diameter)} of 2.5 or more.

An optical fiber assembly comprises an optical fiber having a forward end, a ferrule supporting the optical fiber, a beam expanding element aligned with the forward end of the optical fiber, and a thermal expansion compensation element adjacent the optical fiber to compensate for thermal expansion differences between the optical fiber and the ferrule.

Device for the coaxial connection of fiber-optic cables, comprising a single-piece coupling housing (10) and a single-piece sleeve mount (20), the sleeve mount (20) being designed with at least one latching nose (21) and the coupling housing (10) being designed with at least one latching mount which complements the at least one latching nose (21), wherein the latching mount is designed with at least one latching hook (14) and at least one stop (15).

A fiber optic adapter is disclosed. The fiber optic adapter includes a main body configured to receive a first fiber optic connector through a first end and a second fiber optic connector through a second end for mating with the first fiber optic connector. The adapter includes a ferrule alignment structure located within an axial cavity of the main body, the ferrule alignment structure including a sleeve mount and a ferrule sleeve, the sleeve mount including an axial bore and at least one latching hook extending from a center portion of the sleeve mount toward the first end of the main body and at least one latching hook extending from the center portion toward the second end of the main body, the latching hooks configured to flex for releasably latching the first and second fiber optic connectors to the fiber optic adapter. The sleeve mount and the main body of the fiber optic adapter are unitarily molded as a single piece and the ferrule sleeve is separately placed within the axial bore of the sleeve mount.

An optical fiber connector is for linking a standard connector head member and a lucent connector tail member, and includes a first connecting member and a second connecting member. The first connecting member is adapted to be detachably connected to the standard connector head member, and has a first hollow body that defines a first passage. The second connecting member is adapted to be detachably coupled to the lucent connector tail member, is connected to the first connecting member, and has a second hollow body that defines a second passage. The second passage is in spatial communication with the first passage and has a diameter that is 1.3 millimeters. The first connecting member and the second connecting member are molded as one piece.

A positioning mold of optical fiber connector includes a lower mold board and a thin board. The lower mold board includes two positioning pins and at least one through aperture. The thin board is arranged above the lower mold board, and is provided with two first through holes and with at least one optical fiber positioning aperture. The two first through holes correspond to two positioning pins, and the at least one optical fiber positioning aperture to the at least one through aperture. Given such structure, even if optical fiber lines fracture inside of the optical fiber positioning apertures during the work of positioning, the fractured optical fiber lines can be taken out and replaced easily, so as to improve the productivity in manufacturing optical fiber connectors.

[Problem] The purpose of the present invention is to provide a multi-fiber optical ferrule and a multi-fiber optical connector which have connection compatibility with conventional optical connectors.

[Solution] A multi-fiber optical ferrule 100 comprises: a main body which comprises a resin composition; a plurality of optical fiber insertion holes 103 which are provided in the main body and into which optical fibers 11 are inserted; and two guide pin holes 102 which are provided in the main body and into which guide pins are inserted, wherein the optical fiber insertion holes comprise not less than 24 holes and are provided on a straight line connecting the two guide pin holes, the optical fiber insertion holes have a small diameter part 110 and a large diameter part 106, the internal diameter of the small diameter part is 81 ?m, and the pitch Pm for optical fiber insertion holes at the center part is twice the pitch P for optical fiber insertion holes other than those at the center part.