Polarization independent optical phase modulator

Optical: systems and elements – Optical modulator – Light wave temporal modulation

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Details

359251, 359253, 359254, 359279, G02F 113, G02F 11343

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active

059738170

ABSTRACT:
A polarization independent optical phase modulator comprises first and second substrates. A reflector is disposed between the first and second substrates and a quarterwave plate is disposed between the reflector and the first substrate. A polarization dependent electrooptic layer is disposed between the quarterwave plate and the first substrate. The quarterwave plate has an optic axis which is aligned at 45 degrees to the polarization whose phase is modulated by the electrooptic layer.

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Pancharatnam, "Achromatic Combinations Of Birefringent Plates", Proc. Ind. Acad. Sci., vol. 41A (1955), pp. 130-137.

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