Abstract
The output of a fiber-current sensor with a nonideal input (either misaligned linear or elliptical polarization) and moderate output misalignment in the setup (the fiber end versus the Wollaston prism) has been considered. Based on this, a novel method that uses a statistical approach, including a set of scanning elliptical polarization inputs and the corresponding curve-fitting outputs for a given current, is used to determine the birefringence of the fiber-current-sensing system. The experimentally measured bend-induced birefringence agrees with the estimated value of the bend birefringence.
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