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polarizing beam splitter (PBS)

A polarization splitter (PBS) is a cubic glass body that polarizes light

in different oscillation planes. Light that strikes a polarization splitter is only transmitted by the polarization splitter in one oscillation plane.

Cubic glass

Cubic glass

splitterAt the same time, light components are reflected at the separating layer within the PBS splitter and polarized in a second plane of

oscillation. Thetwo differently polarized light beams emerge at different points of the glass cube. The emerging polarized light has a high light transmission in both the transmission and reflection direction, which is well above 90 %.

The principle of the polarization splitter can be used in reverse as a polarization combiner for combining polarized light. Polarization splitters and combiners are used in optical fiber technology, optical networks, DVD drives and in various projectors.

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Englisch: polarizing beam splitter - PBS
Updated at: 19.08.2011
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