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Optically controlled beam forming techniques are effective for phased array antenna control. We have developed the Fourier transform (FT) optical beamformer and demonstrated beam-steering of an RF beam in the C-band. These results show the feasibility of the FT optically controlled array.
We propose an optically controlled multiple-beam phased array antenna employing spatial and wavelength division multiplexing. The wavelength multiplexed light beams are separated spatially by their own wavelengths using an optical band pass filter. Each separated light beam is spatially phase modulated by a phase-only spatial light modulator. Then, all phase modulated light beams are overlapped, again...
We propose and demonstrate an optically controlled multiple-beam phased array antenna employing spatial light modulator. Developed prototype of the optical beamformer enables control multiple-beam direction and width; we demonstrated beamforming operation at 18 GHz. Furthermore, we have performed the communication test such as the bit error ratio (BER) test, data rate of 622 Mbps and 1244 Mbps in...
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