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The project NESSiE will realize entangled photon pair sources based on nonlinear waveguides in the materials periodically polarized lithium niobate (PPLN) and aluminum gallium arsenide (AlGaAs) for quantum imaging and eavesdrop-proof quantum communication. These sources enable the integration with other optical and electronic components on chip level and thus a reduced size, weight and power (SWaP) of the components, which is an essential prerequisite for the realization of practical applications