Patent ID: 8660392
Filing Date: 2014-02-25
Classification: G02B

Abstract:
1. An optical cable, comprising: an optical cable skeleton; and a plurality of optical fiber units that are grouped into multiple optical fiber groups; wherein a plurality of skeleton slots are recessed in a periphery of the optical cable skeleton, the number of the skeleton slots is same as the number of the optical fiber groups, and each of the skeleton slots is configured to receive a respective optical fiber group; wherein each of the optical fiber groups comprises a plurality of optical fiber units that are separately received in a corresponding one of the skeleton slots, the optical cable is vertically placed so that the optical fibers units received in the skeleton slot recline on inner walls of the skeleton slot; wherein the optical cable skeleton is an SZ-shaped optical cable skeleton, and each of the skeleton slots is distributed on a periphery of the optical cable skeleton in an S-Z spiral shape; and wherein an S-Z angle of the SZ-shaped optical cable skeleton enables the skeleton slot to provide a support force for the optical fiber unit, wherein a combination of the support force provided by the skeleton slot and a friction force between the skeleton slot and the optical fiber unit substantially balances a gravity of the optical fiber unit when the optical cable is vertically placed.