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arXiv · 2505.08095

Cross-correlation scheme for quantum optical coherence tomography based on Michelson interferometer

Anna Romanova·Vadim Rodimin·Konstantin Katamadze
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Abstract

Quantum optical coherence tomography (QOCT) offers a simple way to cancel dispersion broadening in a sample while also providing twice the resolution compared to classical OCT. However, to achieve these advantages, a bright and broadband source of entangled photon pairs is required. A simple implementation uses collinear spontaneous parametric down-conversion in a Michelson interferometer (MI), yet this autocorrelation scheme suffers from parasitic terms and sensitivity to phase noise. Here, we introduce a cross-correlation MI-based QOCT that overcomes these drawbacks, significantly advancing QOCT toward practical applications.

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Anna Romanova, Vadim Rodimin, Konstantin Katamadze. 2025-05-12. Cross-correlation scheme for quantum optical coherence tomography based on Michelson interferometer. https://doi.org/10.1103/246p-64hd

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