Polarization-maintaining fibers are an essential component in advanced optical systems, designed to maintain the polarization of light as it travels through the fiber. These specialized single-mode fibers are engineered with stress elements embedded in the cladding, exerting mechanical stresses on the fiber core. This unique construction induces birefringence in the fiber core, ensuring that the polarization of light remains consistent, even over long distances. The meticulous design of these fibers makes them indispensable in applications requiring high precision and reliability. I

The stress elements within polarization-maintaining fibers can be configured in various designs, such as Panda and Bow Tie, each tailored to specific performance requirements. The fibers feature a robust glass core surrounded by a protective jacket, ensuring durability and longevity. The choice of design affects the fiber's transmission properties, allowing for customization based on the desired wavelength range and attenuation. These fibers are particularly valuable in networks with optical fibers, pump lasers, and microscopic applications, where maintaining the integrity of the light's polarization is crucial. 

Polarization-maintaining fibers are available in various specifications to cater to a wide range of applications, from visible to infrared wavelengths. With mode field diameters and numerical apertures carefully selected for optimal performance, these fibers offer exceptional transmission properties across different wavelength ranges. The fibers are coated with acrylate for additional protection, and custom jacketings and assemblies are available upon request to meet specific project needs. This versatility ensures that polarization-maintaining fibers can be seamlessly integrated into diverse optical systems, providing the precision and reliability that advanced applications demand.