Reasons for high temperature in communication optical cables
Fiber optic cables, integral to modern telecommunication, are especially sensitive to temperature fluctuations. High temperatures can induce thermal stress, affecting signal integrity and potentially causing signal loss. Thus, the conjugation of high power propagation and tight bending, resulting from the actual FTTH infrastructures, is responsible for fibre lifetime reduction, mainly caused by the local increase of the coating temperature. While they're designed to operate within specified temperature ranges, running a module above its rated operating temperature causes measurable performance degradation and can lead to permanent failure.
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