Optical fiber cable with impact resistant buffer tube

• Main Authors: BOOKBINDER DANA CRAIG, WILLIAMSON BRANDON ROBERT, BACA ADRA SMITH, SEDDON DAVID ALAN, TANDON PUSHKAR, OCAMPO MANUELA, PETERSON RICHARD CURWOOD
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2017
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

An crush resistant optical cable and/or crush resistant optical fiber buffer tube (20) are provided. The cable generally includes a tube (20) having at least one layer formed from a first material and an optical fiber (18) located within a channel of the first tube. The buffer tube is configured to protect optical fibers from crush or impact events through a cushioning action. For example, the first material may be a polymer material having modulus of elasticity of less than 200 MPa and even less 5 MPa and the layer of the tube acts as a compliant cushioning layer at least partially contacting and surrounding an outer surface of the optical fiber when radially directed forces are applied to the outer surface of the tube having a sufficient thickness Tl of larger than the fibre diameter. 本发明提供了种抗压挤性光缆和/或抗压挤性光纤缓冲管。所述电缆大体上包括：管，所述管具有由第材料形成的至少个层；以及光纤，所述光纤定位在所述第管的通道内。所述缓冲管被配置来通过减震动作保护光纤免受压挤或冲击事件。例如，所述第材料可以是具有小于200MPa的弹性模量的聚合物材料，并且所述管的所述层充当柔性减震层，在向所述管的所述外表面施加径向定向力时，所述柔性减震层至少部分地接触并包围所述光纤的外表面。