For POF applications that must withstand extreme temperature operation or frequent temperature cycling, optimal connector-to-cable attachment can be achieved through the use of an adhesive, particularly a two-part epoxy.
Epoxy is first placed in the connector, then fiber is inserted and the connector is crimped normally. Once the epoxy has cured, the connector can be polished. Approximately 1 mm3 is used per connector. Good epoxy coverage can be achieved by turning the fiber within the confines of the connector.