Abstract
The influence of joins on the state of polarization in a polarization-maintaining single-mode fiber cable link is examined. The two practical cases of linear and circular polarization are studied. Assuming perfect fibers, two random variables are involved: the phase mismatch between eigenmodes in a fiber and the misalignment of linear birefringence axes at the joins. A statistical treatment, checked with a computer simulation, gives the law of energy transfer to the undesired state of polarization and the tolerances required in both cases to obtain a given crosstalk.
© 1981 Optical Society of America
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