Device for converting circularly oscillating electromagnetic radiation beams into linearly oscillating radiation beams
OwnerBrian Scott, Bernd Rummeliinventors
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Abstract
A device is disclosed for converting a circularly polarized electromagnetic radiation into linearly polarized electromagnetic radiation. The device includes a depolarizer with depolarizing elements supported in a polarization mode converter for rotation between a vertical output and a horizontal output. A depolarization position for circularly polarized radiation exists between the horizontal output and the vertical output. The rotation direction of the depolarizer can be adjusted to selectively direct left-handed circularly polarized and right-handed circularly polarized radiation either to the vertical or the horizontal output.
Claims10
Device for converting a circularly oscillating electromagnetic radiation beam into a linearly oscillating radiation beam, characterized in that a depolarizer (2) having a surface (25) with depolarizing elements (26) is supported in an oscillation mode converter (1) for rotation between a vertical output for vertically oscillating radiation beams and a horizontal output for horizontally oscillating radiation beams, and that a depolarization position for circularly oscillating radiation beams exists between the horizontal output and the vertical output, in which position depending on the rotation direction of the depolarizer (2) radiation beams performing a left-handed oscillation can be supplied either to the horizontal output or the vertical output and radiation beams performing a right-handed oscillation can be supplied either to the vertical output or the horizontal output.
Device according to one of the claims 1 to 9, characterized in that for obtaining horizontally oscillating radiation beams from circularly oscillating radiation beams, the depolarizing elements (26) of the depolarizer (2) can be rotated from their vertical direction towards their horizontal direction by 45°.
Dependencies are inferred from the claim text.