Fibercore's HB series polarization maintaining optical fiber (80 and 125 micron), features the characteristic "bow tie" stress-applying parts, giving you the very best in performance and handling. Polarization-maintaining fiber (PM) is a type of optical fiber that is able to maintain the polarization planes of the light that is injected into the fiber. Polarization is maintained during propagation, and their is minimal or no cross-coupling between the polarization modes. Common applications for polarization maintaining optical fiber include telecommunications, fiber optic sensing applications and interferometry. Also referred to as polarization preserving fiber. In addition to this type of optical fiber, we offer a wide range of bare and jacketed fiber for every fiber optic application. If you don't see an item that you need on this website, just call us and we can get it for you.