A Polarizing filter or Fiber Optic Polarizer is an optical filter that lets light signals with specific polarization pass through the fiber cable while blocking signals of other polarization. It is used to filter undefined polarizations from a beam of polarized light. Polarizing Filters are placed inline to improve the characteristics of fiber optic cable by allowing transmission in only one polarization state by polarizing the incoming light. Fiber optic polarizers (FOP) are the key component in a variety of applications, including fiber amplifiers, fiber lasers, fiber sensors, test & measurement, and communication.

Polarized filters or fiber optic polarizers are useful in transmitting the strongest and cleanest output signal over long distances. Fiber optic cables with polarizers produce outputs with maximum intensity at a wide bandwidth without hindering the speed of signal transmission.

When you look to get optical fiber polarizers for industrial applications, here are some factors you should keep in mind to make the right selections for your custom fiber network.

Insertion Loss: Low insertion loss should be your top priority when choosing a fiber optic polarizer for industrial applications. The fiber optic polarizers you pick should maintain the quality of the signal transmitted while causing minimum attenuation loss.

Available Bandwidths: Different optical applications require signal transmission at different bandwidths. It is important to choose the right fiber and fiber optic polarizers that match the desired output bandwidth as per your specific requirements.

Size: It is always a good idea to pick smaller size polarizers to avoid design complexity due to available space. Picking smaller polarizers also results in lower insertion loss during transmission.

Extinction Ratio: When choosing the best fiber optic polarizer for industrial application, you cannot rule out the extinction ratio from your list. It is the ratio of the desired polarization to that of the undesired polarization during the transmission. This ratio is the best indicator of the quality of transmission you will achieve from your fiber network.

Fiber optic polarizers or polarizing filters are a key component of fiber optic networks for a variety of applications. These devices standardize and simplified the process of building a fiber-optic network and signal transmission. They are ideal for high-density data and measurement applications where maximum efficiency and high output are required. At DK Photonics, we provide fiber optic polarizers in a variety of sizes and bandwidths to help companies build custom fiber optic environments with low insertions loss and design cost. Contact us to discuss your custom requirements and get a free quote for your specific design needs.