Patent ID: 6778745
Filing Date: 2004-08-17
Classification: G02B

Abstract:
An optical cable, substantially without a central strength member, the optical cable comprising:at least one multi-fiber unit tube dimensioned to receive a plurality of optical fibers, the unit tube being substantially circular and having an inner diameter (D), wherein the modulus of the at least one multi-fiber unit tube is less than 70,000 psi; a stacked plurality of optical fiber ribbons positioned within the multi-fiber unit tube, the stacked plurality of optical fiber ribbons having a diagonal length (d), wherein the ratio of the diagonal length (d) of the stacked plurality of optical fiber ribbons to the inner diameter (D) of the multi-fiber unit tube is at least 0.90; and a filling material disposed between the stacked plurality of optical fiber ribbons and the multi-fiber unit tube.