Patent ID: 7848604
Filing Date: 2010-12-07
Classification: G02B

Abstract:
1. A fiber-optic cable comprising: at least one optical fiber, the optical fiber including a core and a cladding around the core; a primary buffer around the optical fiber; a multi-layer secondary buffer positioned around the optical fiber and primary buffer, the secondary buffer including at least a first buffer layer formed of PTFE and a second buffer layer overlaying the first buffer layer; an outer surface of the PTFE of the first buffer layer being pre-treated to modify the outer surface for receiving application of the second buffer layer; the second buffer layer being an homogenous and continuous material layer applied over the pretreated outer surface of the first buffer layer in a continuous application process including at least one of a coating or an extrusion process; the second buffer layer having a thickness in the range of 0.0005 to 0.0050 inches; a strength member layer positioned around the primary and secondary buffers; an outer jacket positioned around the strength member.