Here we present the development of a 3D holographic endoscope with an interferometer built around a commercial
rigid endoscope. We consider recording the holograms with coherent and incoherent light separately without
compromising the white light imaging capacity of the endoscope. In coherent light based recording, reference
wave required for the hologram is obtained in two different ways. First, as in the classical holography, splitting the
laser beam before the object illumination, and secondly creating the reference beam from the object beam itself.
This second method does not require path-length matching between the object wave and the reference wave,
and it allows the usage of short coherence length light sources. For incoherent light based holographic recordings
various interferometric configurations are considered. Experimental results on both illumination conditions are