Correcting spatial-spectral crosstalk and chromatic aberrations in broadband line-scan spectral-domain OCT images

Digital correction of optical aberrations allows for high-resolution imaging across the full depth range in coherence tomography (OCT). Many digital aberration (DAC) methods have been proposed past to evaluate and correct monochromatic error OCT images. However, other factors that deteriorate image quality not fully investigated. Specifically, a broadband line-scan spectral-domain system (LS-SD-OCT), photons with different wavelengths scattered from same transverse location imaged object will be projected onto spatial coordinates 2D camera sensor, which this work is defined as spatial-spectral crosstalk. In addition, chromatic both axial lateral directions are negligible broad spectral bandwidths. Here we present novel approach recovery resolution images acquired LS-SD-OCT, addresses these two main limit effectiveness DAC restoring diffraction-limited LS-SD-OCT approach, crosstalk suppressed by registration sub-band tomograms digitally corrected aberrations. The new method was validated standard target, microspheres phantom, biological tissues. technology combined reconstruction could valuable research tool various biomedical clinical applications.