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

• URL: http://arxiv.org/abs/2505.08095v1
• Date: Mon, 12 May 2025 21:57:39 GMT
• Title: Cross-correlation scheme for quantum optical coherence tomography based on Michelson interferometer
• Authors: Anna Romanova, Vadim Rodimin, Konstantin Katamadze,
• Abstract summary: Quantum optical coherence tomography (Q OCT) offers a simple way to cancel dispersion broadening in a sample.<n>However, to achieve these advantages, a bright and broadband source of entangled photon pairs is required.<n>We introduce a cross-correlation MI-based Q OCT that overcomes these drawbacks.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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