An apparatus, method, and system are directed to managing a multi-modal communication over a network. The device comprises a photonic crystal receiving the incident radiation beam at a dynamically controlled incidence angle. Two prefabricated pin holders are positioned on the first side of the first circuit board. A fine frequency estimator generates an intermediate frequency estimate and a plurality of phase estimates, based on the coarse frequency-shifted version of the signal of interest, resolves phase ambiguities in the plurality of phase estimates based on the intermediate frequency estimate, and generates a fine frequency-shifted version of the signal of interest.