RevisitingtheStress-Induced Birefringence in Polarization-Maintaining Fibers

Two conventional errors in the stress-induced birefringence (SIB) of polarization-maintaining fibers (PMFs) are revealed and corrected. The first issue refers to fundamental expression its calculation SIB, which depends on selection stress components. There were obvious inconsistencies two pioneering reports, while both widely applied subsequent works. second is basic form Airy function (ASF) cross-section plane PMF, dominates complexity for SIB. ASFs early works different, led different expressions Both cannot be reproduced, calculated results just around 1/2 corresponding measurements. In this paper, issues have been fixed by revising definition SIB proposing a new ASF PMFs. developed theory simple does not any mathematical contradiction process, compare reported Results revised based achieve good agreement with practical experimental