Flexible optical fiber ribbon and optical cable

Abstract

The invention relates to a flexible optical fiber ribbon and an optical cable, the flexible optical fiber ribbon comprises a plurality of core tape groups, the core tape groups are arranged in parallel, and each core tape group comprises three optical fiber units; the three optical fiber units of the core belt group are arranged in parallel, the optical fiber units on two sides comprise one optical fiber, and the optical fiber unit in the middle comprises at least one optical fiber which is arranged in parallel and connected; every two adjacent core belt groups and every two adjacent optical fiber units in the core belt groups are connected through a plurality of first connecting parts which are discontinuously arranged in the length direction of the optical fiber; and a plane passing through the axes of the two adjacent optical fibers is used as a reference plane, the first connecting part comprises two connecting units located above and below the reference plane respectively, and buffer cavities are formed between the two adjacent optical fibers and between the two connecting units above and below the reference plane. The problem that the flatness of the optical fiber ribbon is poor due to the fact that resin is easily damaged when the optical fiber ribbon is bent in the width direction in the prior art can be solved.

Description

technical field [0001] The present application relates to the technical field of optical fiber communication, in particular to a flexible optical fiber ribbon and optical cable. Background technique [0002] In recent years, with the vigorous advancement of the construction of "all-optical network", the construction of traditional underground access network is facing new challenges. On the basis of making full use of the original underground facilities, the demand for ultra-large-core and high-core-density optical cables is increasing. How to increase the core number of optical cables while maintaining the original outer diameter of optical cables has become the direction of exploration in the industry. The existing flat optical fiber ribbon has been paid special attention to because of its high density, high integration, light weight, and convenience for multi-fiber splicing. The size of optical cables with the same number of cores is also large, and it has been unable to ...

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Problems solved by technology

[0005] The embodiment of the present application provides a flexible optical fiber ribbon and an optical cable to solve the problem that in the related art, when the optical fiber ribbon is bent along the width direction, the resin used to connect the optical fiber and the optical fiber into the optical fiber ribbon is easily damaged, so that the optical fiber ribbon is flat. poor degree of problem

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