Device acquiring holography and system including the same

A hologram acquisition system comprising:

• a hologram acquisition device equipped with a beam splitter module and an optical control module;
• an image generating device receiving an interference fringe generated from the hologram acquisition device and generating a hologram images;
• a first quarter wave plate monolithically combined between the first reflective optical element and the beam splitter;
• and
• a second quarter wave plate monolithically combined between the second reflective optical element and the beam splitter,
• wherein the beam splitter module splits a light emitted from an object into a first beam and a second beam which have polarizations in different states,
• wherein the optical control module is equipped with a first reflective optical element, which is disposed at one side of the beam splitter module and receives and emits the first beam to the beam splitter module, and a second reflective optical element which is placed at the other side of the beam splitter module, receives the second beam and emits the second beam to the beam splitter module so as to have differences of optical path and wavefront from the first beam,
• wherein the beam splitter module, the first reflective optical element and the second reflective optical element are monolithically installed by being fixed to each other,
• wherein the first beam and the second beam are linear polarizations at angles different from each other, and
• wherein the first beam and the second beam, which are emitted from the beam splitter, are incident on the first quarter wave plate and the second quarter wave plate and are output as circular polarizations with states different from each other, the first beam and the second beam having the circular polarizations are wavefront modulated by being reflected from the first reflective optical element and the second reflective optical element, and the first beam and the second beam, which are wavefront modulated, are incident on the first quarter wave plate and the second quarter wave plate again and are output as linear polarizations.