The present disclosure relates to a plasma treatment (under atmospheric conditions or under vacuum conditions) of a jacketed cable comprising a cable jacket and a heat shrink tubing. The plasma treatment improves retention properties of an optical fiber cable assembly by imparting a permanent change on a polymer surface of the cable jacket by cross-linking, leading to eventual graphitization, that can result in a diffusion barrier layer at an interface of the cable jacket and the heat shrink tubing, which prevents or minimizes plasticizer migration and results in an environmental seal (e.g., a long-term water tight seal).

A device for fusion splicing, by an arc discharge, a pair or a plurality of pairs of optical fibers arranged so that end surfaces thereof face each other. An optical fiber arrangement portion positions the pair or the plurality of pairs of optical fibers between a pair of electrodes. A control portion controls a voltage applied to the pair of electrodes. The control portion generates a first discharge between the pair of electrodes, stops the first discharge between the pair of electrodes, and then generates an arc discharge between the pair of electrodes to fusion-splice the pair or the plurality of pairs of optical fibers to each other. A discharge time of the first discharge is 200 milliseconds or less. A time from stopping the first discharge to starting the arc discharge is 100 milliseconds or less.

An optical fiber arrangement method includes: preparing an intermittently connected optical fiber ribbon including optical fibers arranged side by side at a first pitch larger than a fiber diameter; holding a non-connecting region of the optical fiber ribbon with a holder, where connecting portions intermittently connect the optical fibers extending out from the holder to each other; changing a width of the optical fiber ribbon in an interior of the holder; and arranging the optical fibers, extending out from the holder, with intervals of the optical fibers changed from the first pitch to a second pitch smaller than the first pitch by removing the connecting portions in a state where the holder is holding the optical fibers.

The present invention relates to a low-profile splice protection system for protecting multi-fibre fusion splice sites. The splice protection system comprises coating material to package the splice site and may comprise a protective housing.

Disclosed is an elongated optic fiber stub portion that results from using an elongated hollow elastomeric tubular member, also known as an elongated rubber boot, preferably made of silicone rubber, in connection with a method for fusing cleaved end faces of two optic fibers together. The method includes several steps.

A holder configured for use with a fiber optic cable connector body is disclosed. The holder includes, as an improvement, an integral stop. The integral stop includes a wall located adjacent a first end portion of the connector holder. The plurality of substantially semicylindrical recesses are located between the first end portion and a second end portion spaced from the first end portion. The wall is located between two adjacent recesses of the plurality of recesses. The wall includes a base oriented along a longitudinal axis. The wall has a first exterior surface, and a second exterior surface spaced from the first exterior surface. The first and second exterior surfaces each extend from the base and are oriented transverse to the longitudinal axis.

A fusion splicer is disclosed. The fusion splicer includes a fusion splicing unit that fusion splices of optical fibers, a communication unit that communicates through wireless connection with an external terminal, and a setting unit that sets a fusion condition of the fusion splicing unit. The communication unit acquires information related to the fusion condition of the fusion splicing unit from the external terminal. The setting unit sets the fusion condition of the fusion splicing unit based on the acquired information related to the fusion condition. The fusion splicing unit fusion splices in accordance with the fusion condition set by the setting unit.

A welding system for welding a first elongated element and a second elongated element together by a laser beam that is emitted from a laser welding head after the ideal welding center point of the aligned first and second elongated elements has been positioned at a focal point of the laser beam that is emitted from the laser welding head.

A fusion splicer according to the disclosure includes an imaging unit, a discrimination unit, and a splicing unit. The imaging unit images a pair of optical fibers and generates imaging data. The discrimination unit discriminates a type of each of a pair of optical fibers based on a plurality of feature amounts obtained from imaging data provided from the imaging unit. The discrimination unit adopts a discrimination result by any of first and second discrimination algorithms. The first discrimination algorithm is predetermined by a method other than machine learning. The second discrimination algorithm includes a discrimination model. The discrimination model is created by machine learning using sample data. The splicing unit fusion-splices the pair of optical fibers to each other under a splicing condition according to a combination of the types of pair of optical fibers based on a discrimination result in the discrimination unit.

An adapter is configured to hold a loose tube fiber cable and is mountable into a fusion splicer. The adapter includes a clamp base having a first and second grooves, each groove having a centerline, a width and a depth. The depth of the second groove is greater than the depth of the first groove, such that a shoulder is formed between the first and second grooves. The centerlines of the grooves align. This allows for the loose tube fiber cable or splice-on connector to be properly positioned within the grooves. The first groove is V-shaped. The second groove may be V-shaped, U-shaped or square-shaped. A clamp cover seats on the clamp base. The clamp cover has a compressible pad which, when the clamp cover is placed into a facing relationship with the clamp base, the pad aligns with the first groove.