Demonstration reveals improved quantum OCT measurements using nonlinear integrated interferometers, suggesting efficiency in sensor integration.
The development of practical quantum sensors requires integration. We demonstrate that nonlinear integrated interferometers based on guided-wave PDC processes bene-fit from implementation in the induced coherence geometry instead of the commonly used SU(1,1) geometry for quantum OCT measurements with undetected photons.
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Roeder et al. (2025) studied this question.
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