This experiment reveals induced coherence in the signal spectrum using spectrally multimode SU(1,1) interferometer with SPDC, suggesting potential applications in quantum optics.
A spectrally multimode SU(1,1) interferometer is presented, based on SPDC at 1.57+3.29 µm in a PPLN crystal pumped by 1.064 µm sub-ns pulses . We observe induced coherence on the intensity of the signal spectrum.
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Melkonian et al. (2025) studied this question.
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