"We have implemented two different configurations of QOCT, using the Hong-Ou-Mandel (HOM) interferometer. The HOM interferogram graphs the coincidences of the signal (s) and idler (i) photons, generated in spontaneous parametric down conversion (SPDC), versus their optical paht difference, showing no coincidence detection, this phenomenon is called HOM dip. Both implemented QOCT configurations use the HOM interference but employing two different configurations of SPDC: Type I in non-collinear and Type II in collinear propagation. The maximum axial resolution reached in this work was 4.08 m, obtained using SPDC Type I in non-collinear propagation and a cube beam splitter."