Polarizing beamsplitters are crucial in systems  requiring the separation of s- and p-polarized light. For instance, in semiconductor and photonics instrumentation, a beamsplitter transmits p-polarized light and reflects s-polarization light. Polarizing beamsplitters are also used in optical isolators to prevent feedback-induced damage, as the transmitted beam consists entirely of polarized light.

Beam splitterworking principle

At Avantier, we design and manufacture plate beamsplitters (in both round and rectangular configurations), cube polarizing beamsplitters, and lateral displacement beamsplitters. A variety of substrates and coating options allow us to customize your polarizing beam splitter order to meet desired wavelength ranges and power-handling requirements.

Beam SplitterTeleprompter

Polarizing beamsplitter can be divided into three categories: polarizing plate beamsplitters, cube beamsplitters, and lateral displacement beamsplitters. All three types separate the light radiation into two beams with orthogonal polarization. In a perfect beamsplitter, the ratio of reflected to transmitted light will always be 50/50.

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Our beamsplitters have an extinction ratio of 100:1, along with high surface quality and surface flatness. We also produce Brewster windows and birefringent crystals that are highly resistant to laser damage, providing polarization cleanup in potentially compromising situations.

Polarizingbeam splitterprinciple

A polarizing beamsplitter is an optical component designed to split light into two directions, dividing it by polarization state.  Beamsplitters consist of high-quality optical glass, and most polarizing beamsplitters are designed to split light into reflected s-polarized and transmitted p-polarized beams. For incident light entering at a 0° or 45° angle, the beamsplitter separates the two polarized beams at a 90° angle. When two displaced parallel beams are required, a lateral displacement beamsplitter can be used. Avantier offers cubic, plate, and lateral displacement beamsplitters with tight tolerance on all parameters, making us a premium source for all your custom beamsplitter needs. Our experienced optical engineers and designers can help you determine the perfect beamsplitter for your requirements.

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