Abstract
A passive millimeter-wave sensor based on optical up-conversion that is sensitive to the polarization state of incident radiation is described. This system up-converts incident millimeter-wave radiation to an optical frequency and then recreates the polarization state of the millimeter-wave radiation in the optical signal. A division of time approach is then used to extract the Stokes information from the signal using optical techniques. Results are shown which verify the feasibility of this approach and demonstrate the ability to control the phase of the signal to enable the measurement of Stokes information.
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