The Behavior of PMD Parameter in an Optical Cable Link due to Temperature Cycling

摘要

This paper presents a characterization of PMD parameter in optical cable links under thermal cycle using conventional Single-Mode Fiber (SMF-G.652) and Non-Zero Dispersion Shifted Fiber (NZDF-G.655). The expected PMD value for the link comprised NZDF-G.655 exhibits a much larger variation than the results obtained with the link SMF-G.652. Measurement of the cable links after the end of the thermal cycle shows that the expected PMD value remains almost the same to the value measured at the beginning of the experiment, especially for the link comprised of SMF-G.652 fibers. From the practical point of view this results are very important, since than as the thermal cycle represent conditions that affect the optical cable during its lifetime, this means that the system designer may consider the initial expected PMD values without significant modification of the PMD distribution during cable's lifetime.