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How to Build an Optical Isolator with Stock Components

Many laser applications are prone to specular reflections back into the source, causing overheating and decreased stability and lifetime. An optical isolator, which emits a circularly polarized beam and allows light to transmit in only a single direction, can eliminate that back reflection. Join Ehren O’Donnell, Product Line Engineer, to learn how to use Edmund Optics’ stock components, a linear polarizer and a quarter-wave plate, to build an optical isolator.

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