Hybrid Optical Beam-Former in Receiver Mode

Abstract

In this paper, an optical beam-former in receiving mode has been proposed and experimentally demonstrated. The requirement in system's hardware has been dramatically reduced using a hybrid approach between dispersive and non-dispersive delay. The proposed system is capable of supporting RF signals from L-band to X-band, with large coverage and strong robustness against the grating's group delay ripples

Coherent optical three-dimensional spectrum-correlation processing of wave signals based on space–time integration

“…The input arrays p x and p y can be implemented on the basis of spatial 1D multichannel electro-optic modulators with individual electrical control of each element of the array, for example, using an LiTaO 3 modulator [15].…”

“…To form simultaneously all N 2 beams (in two directions) of two crossed 1D arrays each with N elements, N 4 electronic or fiber-optic [15] discrete delay lines or waveguide switches [16] are necessary. To form simultaneously all N 2 beams (in two directions) of two crossed 1D arrays each with N elements, N 4 electronic or fiber-optic [15] discrete delay lines or waveguide switches [16] are necessary.…”