Reconstruction of infrared digital holography based on compressed sensing

The design and algorithm research of the digital holographic imaging system in the near infrared band is carried out in this paper, which is based on the infrared band laser and the planar array detector. We built a set of a near infrared coaxial digital holographic imaging system based on the 1550 nm wavelength distributed feedback laser, and the system was calibrated with the resolution plate. At the same time, the compressed sensing algorithm is used to reconstruct the holograms of the resolution plate and other objects, which effectively inhibits the influence of noise. It proves that infrared digital holographic imaging technology is a new potential phase-contrast imaging method.