Patent ID: 8861971

Claim:
A phased antenna array comprising: an array of antenna elements; and an electro-optic (EO) readout circuit coupled to said array of antenna elements and comprising: an optical source comprising a first wavelength division multiplexer (WDM) configured to generate an optical carrier signal comprising a plurality of beam carrier wavelengths, a first EO modulator configured to modulate a signal from at least one antenna element based upon the optical carrier signal, a second WDM coupled downstream from said first EO modulator, and a plurality of optical-to-electrical converters coupled downstream from said second WDM, said second WDM configured to multiplex each modulated beam carrier wavelength to a respective optical-to-electrical converter; and wherein said EO readout circuit comprises a local oscillator, and a second BO modulator coupled to said local oscillator and said optical source, said second EO modulator being configured to generate a local oscillator optical carrier signal comprising a plurality of intermediate beam carrier wavelengths.