There is a need for robust and portable system, apparatus and method for imaging subsurface of specimens. We have described a modular OCDR-OCT system and OFDR-OCT system to obtain high quality images. The instant application also discusses proprietary algorithms that have been modified from existing algorithms and their use as a combination to suit a particular system. The imaging of stationary, moving and combination of both subsurface structures such as retina for diabetic patients is described.
