A polarization diversity detection system for distributed sensing of polarization mode coupling in high birefringence fibers has been implemented using a pump-probe architecture based on the optical Kerr effect. The system is capable of locating disturbance points along a length of fiber, for arbitrary probe polarization states. The system is shown to overcome signal-fading problems due to phase bias drift of the probe caused by temperature variations in the fiber.
Princy L. D. Julian, Jian Zhang, Vincent A. Handerek, and Alan J. Rogers, "Polarization Switching for Distributed Transverse Stress Sensing in Optical Fibers Using the Optical Kerr Effect," J. Lightwave Technol. 16, 2378- (1998)