Abstract
A new method for measuring the birefringence dispersion in polarization-maintaining
fibers (PMFs) with high sensitivity and accuracy is presented. The method employs white-light
interferences between two orthogonally polarized modes of PMFs. The group
birefringence of the fiber is calibrated first. Then the birefringence dispersion and its
variation along different fiber sections are acquired by analyzing the broadening of
interferograms at different fiber lengths. The main sources of error are investigated.
Birefringence dispersions of two PANDA fibers at their operation wavelength are
measured to be
and
. A measurement
repeatability of
is achieved.
© 2007 Optical Society of America
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