For quantum communication or optical computing it is important to measure and to influence in which direction a light wave is oscillating. It is now for the first time possible to manipulate this polarization of a continuous laser wave with a special glass fiber, which has mirrors attached at both ends. The effect was discovered by a team of researchers from the Max Planck Institute for the Science of Light in Erlangen together with colleagues from Switzerland, the UK, and Germany. They have published their discovery in the journal Nature Communications.
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Source: Phys.org