Novel fiber bundle central tube type optical cable

Abstract

The invention relates to an optical cable for a communication network, in particular to a novel fiber bundle central tube type optical cable. The while cross section of the optical cable is round, and the optical cable comprises an outer sheath (6), a reinforcing piece (4) and a loose sleeve (2) in turn from outside to inside, wherein a plurality of fiber bundles (1) are arranged in the loose sleeve (2); a water-blocking ointment (3) is filled among the fiber bundles (1); the fiber bundles (1) are made of a plurality of optical fibers (12) by adopting an ultraviolet light curing process; a layer of ultraviolet light cured resin is formed outside the fiber bundles; and an optical fiber water-blocking ointment (11) is filed among the optical fibers. For the novel fiber bundle central tube type optical cable, a plurality of the fiber bundles which are produced by the ultraviolet light curing process and are filled with the water-blocking ointment are placed in the loose sleeve, and compared with the traditional central tube type optical fiber ribbon optical cable, the novel fiber bundle central tube type optical cable has a series of advantages of high fiber density, small volume, light weight, high rate of finished products and the like. The novel fiber bundle central tube type optical cable solves the problems that optical fiber ribbons are scattered easily and are distorted extensively in production or can make the optical fibers on the extreme edge generate large attenuations.

Description

technical field [0001] The invention relates to an optical cable for a communication network, in particular to a novel optical fiber bundle central tube type optical cable. Background technique [0002] The traditional large-core central tube optical cable uses optical fiber ribbon as the optical fiber unit, and the optical fiber ribbon consists of multiple optical fibers distributed side by side in a UV-cured resin. The fiber optic ribbon is ribbon-shaped and has a small thickness, but the fiber optic ribbon is wider. The optical fiber cable produced by using this optical fiber ribbon is relatively wide, so the diameter of the optical cable produced is relatively large, which is not conducive to the full utilization of pipeline resources. The special shape of the optical fiber ribbon will also cause the optical fiber ribbon in the optical cable to often scatter during the production process, making the entire optical cable scrapped. In addition, due to the high bandwidth-...

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Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the object of the present invention is to provide a new type of optical fiber bundle central tube type optical cable, which solves the problem of easy dispersion of optical fiber ribbons and excessive twisting or bending of optical fiber ribbons in the production of traditional central tube type optical fiber ribbon optical cables. The problem of large attenuation caused by the fiber on the far side

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