title: Method for improving the resolution and accuracy against birefringence dispersion in distributed polarization cross-talk measurements.
abstract: We present a novel method for improving the spatial resolution and amplitude accuracy of distributed polarization cross-talk measurements in a polarization maintaining (PM) fiber against its birefringence dispersion. We show that the broadening of measured polarization cross-talk peaks caused by birefringence dispersion can be restored by simply multiplying the measurement data with a compensation function. The birefringence dispersion variable in the function can be obtained by finding the widths of measured cross-talk envelopes at known distances along the fiber. We demonstrate that this method can effectively improve spatial resolution and amplitude accuracy of the space-resolved polarization cross-talk measurements of long PM fibers.
authors.affiliation: Polarization Research Center, College of Precision Instrument & Opto-electronics Engineering and Key Laboratory of Opto-electronics Information and Technical Ministry of Education, Tianjin University, Tianjin 300072, China.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Li
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Meng
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Chen
authors.forename: Tiegen
authors.initials: T
authors.lastname: Liu
authors.forename: X Steve
authors.initials: XS
authors.lastname: Yao