MODULATING RETRO-REFLECTOR OPTICAL COMMUNICATION USING POLARIZATION DIFFERENTIAL SIGNALING

World Intellectual Property Organization Patent

APP PUB NO WO-2009121003-A1
SERIAL NO

PCTUS2009038635

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Abstract

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A retroreflector coupled with a polarization rotator is provided according to some embodiments. The polarization rotator can be designed and/or configured to introduce a fraction of a wavelength phase difference in a received beam of light prior to reflecting the beam of light back toward the source of the light. By switching the state of the polarization rotator a communication signal can be modulated on the return beam of light.

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Patent Owner(s)

Patent OwnerAddress
CUBIC CORPUSCALIFORNIA USA

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Inventor(s)

Inventor Name Address
ROES MICHAEL A SAN DIEGO CA 92166
O'BRIEN JONATHAN R POWAY CA

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