Single-Polarization (PZ) fibers propagate one, and only one polarization state of the fundamental mode. As opposed to standard and polarization-maintaining single-mode fibers, PZ fibers do not suffer from polarization cross-talk, which makes them highly desirable for applications such as fiber optic gyroscopes, current sensors, coherent communications and fiber lasers. AFL’s unique patented PZ Fiber design offers very broad polarizing bandwidth (~200 nm), high extinction ratio (>30 dB), low attenuation and does not require bending to operate. Because of its circular core design, users can routinely splice, connect and integrate AFL’s PZ fiber into their sensing and communications applications.