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arXiv · 2006.02314

Optical Coherence Tomography with a nonlinear interferometer in the high parametric gain regime

Gerard J. Machado·Gaetano Frascella·Juan P. Torres·Maria V. Chekhova
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Abstract

We demonstrate optical coherence tomography based on an SU(1,1) nonlinear interferometer with high-gain parametric down-conversion. For imaging and sensing applications, this scheme promises to outperform previous experiments working at low parametric gain, since higher photon fluxes provide lower integration times for obtaining high-quality images. In this way one can avoid using single-photon detectors or CCD cameras with very high sensitivities, and standard spectrometers can be used instead. Other advantages are: higher sensitivity to small loss and amplification before detection, so that the detected light power considerably exceeds the probing one.

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Gerard J. Machado, Gaetano Frascella, Juan P. Torres, Maria V. Chekhova. 2020-06-03. Optical Coherence Tomography with a nonlinear interferometer in the high parametric gain regime. https://arxiv.org/abs/2006.02314

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