  The temperature dependence of the latency of an optical signal transmitted
over an optical fiber was investigated by means of a correlation OTDR. While
the bare fiber showed a linear latency increase over temperature, the jumper
cable inside a jacket with tight buffer as inner jacket showed an increased
elongation effect, especially in the range of lower tempera-tures. This could
be attributed to the tight buffer. For future latency sensitive applications in
the area of 5G networks these effects have to be taken into account.
