TY - GEN N1 - Optica Applicata, Vol. 39, 2009, nr 1, s. 77-90 N2 - A scanning white light interferometer is developed to measure the distributed polarization coupling (DPC) in high birefringence polarization maintaining fibers (PMFs). Traditionally, this technique requests only one polarization mode to be excited or both polarization modes to be excited with equal intensity in the PMF. Thus, an accurate alignment of the polarization direction with the principal axis in PMF is strictly required, which is not facilely realized in practical measurement. This paper develops a method to measure the spatial distribution of polarization mode coupling with random modes excited using a white light Michelson interferometer. The influence of incident polarization extinction ratio (PER) on polarization coupling detection is evaluated theoretically and experimentally. It is also analyzed and validated in corresponding measurement that the sensitivity of the polarization coupling detection system can be improved more than 100 times with the rotation of the analyzer. L1 - http://www.dbc.wroc.pl/Content/58734/optappl_3901p77.pdf M3 - artykuł L2 - http://www.dbc.wroc.pl/Content/58734 PY - 2009 KW - optyka KW - white light inteferometry KW - birefringent fibers KW - polarization coupling KW - polarization extinction ratio KW - random polarization modes C1 - Wszystkie prawa zastrzeżone (Copyright) A1 - Xu, Tianhua A1 - Tang, Feng A1 - Jing, Wencai A1 - Zhang, Hongxia A1 - Jia, Dagong A1 - Zhang, Xuemin A1 - Zhou, Ge A1 - Zhang, Yimo A2 - Gaj, Miron. Redakcja A2 - Urbańczyk, Wacław. Redakcja PB - Oficyna Wydawnicza Politechniki Wrocławskiej C6 - Dla wszystkich w zakresie dozwolonego użytku LA - eng CY - Wrocław T1 - Distributed measurement of mode coupling in birefringent fibers with random polarization modes UR - http://www.dbc.wroc.pl/dlibra/publication/edition/58734 ER -