title: Experimental Demonstration of Spectral Intensity Optical Coherence Tomography.
abstract: We demonstrate experimentally spectral-domain intensity optical coherence tomography using a Mach-Zehnder interferometer with balanced detection. We show that the technique allows for a point spread function with reduced full-width at half maximum compared to conventional optical coherence tomography. The method further provides benefits similar to those of chirped-pulse interferometry in terms of dispersion cancellation but only requires a broadband incoherent source and standard detectors. The measurements are in excellent agreement with the theoretical predictions. Finally, we propose an approach that enables the elimination of potential artefacts arising from multiple interfaces.
authors.affiliation: Optics Laboratory, Department of Physics, Tampere University of Technology, 33720 Tampere, Finland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Ryczkowski
authors.affiliation: Institute of Photonics, University of Eastern Finland, P. O. Box 111, FI-80101 Joensuu, Finland.
authors.forename: Jari
authors.initials: J
authors.lastname: Turunen
authors.affiliation: Institute of Photonics, University of Eastern Finland, P. O. Box 111, FI-80101 Joensuu, Finland.
authors.forename: Ari T
authors.initials: AT
authors.lastname: Friberg
authors.affiliation: Optics Laboratory, Department of Physics, Tampere University of Technology, 33720 Tampere, Finland.
authors.forename: Goëry
authors.initials: G
authors.lastname: Genty