Ghost optical coherence tomography

TL;DR

This paper introduces ghost optical coherence tomography, a novel imaging method that uses spectral correlations of incoherent light to reconstruct images, matching traditional OCT results.

Contribution

It demonstrates the first experimental implementation of ghost OCT using supercontinuum light and spectral correlation techniques, expanding OCT capabilities.

Findings

Successful experimental demonstration of ghost OCT

High agreement with conventional OCT images

Utilization of supercontinuum light source for imaging

Abstract

We demonstrate experimentally ghost optical coherence tomography using a broadband incoherent supercontinuum light source with shot-to-shot random spectral fluctuations. The technique is based on ghost imaging in the spectral domain where the object is the spectral interference pattern generated from an optical coherence tomography interferometer in which a physical sample is placed. The image of the sample is obtained from the Fourier transform of the correlation between the spectrally-resolved intensity fluctuations of the supercontinuum and the integrated signal measured at the output of the interferometer. The results are in excellent agreement with measurements obtained from a conventional optical coherence tomography system.