The invention relates to a method for laser-based splicing of a glass fiber (1) onto an optical component (3), comprising the following steps: arranging both surfaces to be spliced substantially parallel to each other and at a predefined distance from each other; and aiming a laser beam (4) at the optical component (3).

In order to specify an improved method in which the properties of the joining partners are maintained to the greatest extent during splicing, which exhibits high reproducibility and in particular is suitable for splicing joining partners of different cross-sections, the invention proposes that the angle of incidence of the laser beam (4) on the surface of the optical component be between 15° and 45°.

An optical connector includes: a ferrule that holds an end part of a fiber; and a holding member including: a holding part that slidably holds the ferrule; a fixing part through which the fiber extending from the ferrule is inserted and to which a sleeve for protecting a fusion splice point between the fiber and an optical fiber is fixed; and a housing part that houses the fiber between the holding part and the fixing part when the fiber is bent and the ferrule moves rearward of the housing part.

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.

A multi-fiber splice protector comprises a strength member including opposing first and second walls connected along only edge, and including unconnected opposing first and second wall extensions. The splice protector has a compact width that permits it to be incorporated with multiple fusion splice optical fibers in a multi-fiber push-on (MPO) type connector utilizing conventional MPO components. Protected splice joints may be provided between a multi-fiber ferrule and a boot of a connector, with at least a portion of a split jacket section of a fiber optic cable arranged within the boot. The jacket may have a split length of less than 25 mm and/or an entirety of the split jacket is within the boot. If provided, heat shrink tubing covering the split jacket may have a reduced length and/or may be confined within the boot.

A method of re-splicing a splice-on connector (“SOC”) includes at least five steps: (1) stripping insulation from an end portion of a first optic fiber; (2) stripping insulation from an end portion of a second optic fiber having a connector body fixed to an opposite end portion thereof. One end portion of the connector body is sized and configured to be inserted into an end portion of an elongated hollow member. The method also includes: (3) splicing together the first and second fiber optic end portions to produce either an SOC or a re-spliced splice-on connector (“RSSOC”). The SOC has a predetermined length to enable cutting at three predetermined locations spaced from the connector body. The method further includes: (4) if an operational fault is caused in a system using the SOC or RSSOC, cutting the SOC or the RSSOC at one of the three predetermined regions; and (5) repeating step (3).

An apparatus includes an optical gain fiber having a core, a cladding surrounding the core, the core and cladding defining an optical gain fiber numerical aperture, and a multimode fiber having a core with a larger radius than a radius of the optical gain fiber core, a cladding surrounding the core, the core and cladding of the multimode fiber defining a multimode fiber stable numerical aperture that is larger than the optical gain fiber numerical aperture, the multimode fiber being optically coupled to the optical gain fiber so as to receive an optical beam propagating in the optical gain fiber and to stably propagate the received optical beam in the multimode fiber core with low optical loss associated with the optical coupling.

An optical fiber fuse protection device includes an upstream optical fiber disposed on an upstream side, a downstream optical fiber disposed on a downstream side, and a wall interposed between a part of the upstream optical fiber and a part of the downstream optical fiber. The downstream optical fiber is fusion-spliced to the upstream optical fiber and is made of a single optical fiber or a plurality of optical fibers fusion-spliced to each other.

An optical combiner includes: an optical fiber bundle formed by a plurality of first optical fibers; and a second optical fiber including an end surface joined to an end surface of the optical fiber bundle by fusion-splicing. The plurality of first optical fibers includes a predetermined first optical fiber and other first optical fibers. The predetermined first optical fiber is composed of one or more materials having higher softening temperatures than one or more materials of the other first optical fibers.

Laser light splicing of optical fibers with laser light outside of the peak absorption band of the optical fibers, for example splicing of silica optical fibers at wavelengths smaller than about 9 μm. In some variants, the product of the absorption coefficient at ambient temperature of the optical fibers at the wavelength of the laser light with the power of the laser light is smaller than the product of the peak absorption coefficient at ambient temperature in the absorption band by the power required to splice the optical fibers with light at the peak absorption.

A method for joining fiber optic cables includes sliding a sleeve over a first fiber optic cable, joining a first set of optical fibers of the first fiber optic cable to a second set of optical fibers of a second fiber optic cable, sliding the sleeve over the first and second fiber optic cables, and joining the sleeve to a first exterior casing of the first fiber optic cable and to a second exterior casing of the second fiber optic cable.