Buffered optical fiber and telecommunications cable

摘要

A buffered optical fiber (10) comprises a central core (11) surrounded by an optical cladding (12), a coating (13) surrounding the optical cladding, a protective buffer (15) surrounding the coating and an intermediate layer (14) between the coating and the protective buffer. The intermediate layer consists of hot melt seal and peel material. The intermediate layer (14) may be extruded in tandem with the outer protective buffer (15).

主权项

1. A buffered optical fiber comprising:
a central core surrounded by an optical cladding; a coating surrounding the optical cladding; a protective buffer surrounding the coating; and an intermediate layer between the coating and the protective buffer, the intermediate layer consisting of a hot melt seal and peel material that is a thermoplastic material that becomes fluid when heated, wherein: the intermediate layer couples the coating to the protective buffer to prevent shifting between the coating and protective buffer; the intermediate layer is completely releasable from the coating without leaving traces on the coating or damaging the coating; the material of the intermediate layer has a softening temperature above +70° C.; and the material of the intermediate layer has a glass transition temperature less than −40° C.