Distributed Polarization Crosstalk Analyzer

Distributed Polarization Crosstalk Analyzer: The Distributed Polarization Crosstalk Analyzer (PXA-1000) is a white light interferometer designed to obtain space-resolved stress information by analyzing stress-induced polarization cross-coupling along a length of the polarization maintaining (PM) fiber. The PXA-1000 enables the use of the PM fiber itself as the sensing medium, eliminating the need to place multiple fiber gratings along the fiber. It can therefore obtain higher spatial resolution of the stress distribution than grating-based systems. Because no discrete sensing elements are required, the system is easy to install and calibrate, making it ideal for accurately monitoring space-resolved structural changes along bridges, tunnels, dams, oil pi...